| Records Found (HIT songs listed in Black) |
| SONG |
ARTIST |
YEAR |
VERSIONS |
| O | Omarion | 2005 | 1 |
| O Christmas Tree | Aretha Franklin | | 1 |
| O Christmas Tree | Bob Rivers & Twisted Radio | 1993 | 1 |
| O Come All Ye Faithful | Anne Murray | 2001 | 1 |
| O Come All Ye Faithful | Chet Atkins | 1961 | 1 |
| O Come All Ye Faithful | Chicago | | 1 |
| O Come All Ye Faithful | Ed Ames | | 1 |
| O Come All Ye Faithful | Ralph Carmichael Orchestra | | 1 |
| O Come All Ye Grateful Dead-Heads | Bob Rivers | 1987 | 1 |
| O Come, O Come, Emmanuel | Virgil Fox | | 1 |
| O Fortuna (From Carmina Burana) | Orff | 1989 | 1 |
| O Holy Night | Anne Murray | 1981, 2001 | 2 |
| O Holy Night | Carpenters | 1978 | 1 |
| O Holy Night | Jerry Butler | | 1 |
| O Holy Night | Josh Groban | 2002 | 1 |
| O Holy Night | Luciano Pavarotti | | 1 |
| O Holy Night | Mariah Carey | 1994 | 1 |
| O Holy Night | Mario Lanza | | 1 |
| O Holy Night | MercyMe | 2005 | 1 |
| O Holy Night | The Nylons | 1994 | 1 |
| O Holy Night | Perry Como | | 1 |
| O Holy Night | Reba McEntire | 1987 | 1 |
| O Holy Night | Tevin Campbell | | 1 |
| O Holy Night | Tracy Chapman | | 1 |
| O' Holy Night | Celine Dion | 1998 | 1 |
| O' Holy Night | Christina Aguilera | 2000 | 1 |
| O Little Town Of Bethlehem | Andre Previn conducting | | 1 |
| O Little Town Of Bethlehem | Anne Murray | 2001 | 1 |
| O Little Town Of Bethlehem | Barbra Streisand | 1967 | 1 |
| O Little Town Of Bethlehem | Bob Rivers & Twisted Radio | 1993 | 1 |
| O' Little Town Of Bethlehem | Mannheim Steamroller | 1995 | 1 |
| O' Sanity | Yoko Ono | 1983 | 1 |
| O Sole Mio | Men Without Hats | 1987 | 1 |
| O Superman (For Massenet) | Laurie Anderson | 1981 | 1 |
| O Susanna | Myron Floren | | 1 |
| O Tannenbaum | Mannheim Steamroller f/ Johnny Mathis | 2001 | 1 |
| O Tannenbaum | Vince Guaraldi | | 1 |
| O, Holy Night | Clay Aiken | | 1 |
| O, Katharina! | Mitch Miller & The Gang | | 1 |
| O.P.P. | Naughty By Nature | 1991 | 2 |
| Object Of My Desire | Starpoint | 1985 | 1 |
| Objection (Tango) | Shakira | 2002 | 1 |
| Ob-La-Di, Ob-La-Da | The Beatles | 1976 | 1 |
| Oblio's Return | Nilsson | 1971 | 1 |
| Oblivious | Aztec Camera | 1983 | 1 |
| Obscene Phone Caller | Rockwell | 1984 | 1 |
| Obsession | Animotion | 1985 | 2 |
| Obsession (No Es Amor) | Frankie J f/ Baby Bash | 2005 | 1 |
| Ocean | Sebadoh | 1996 | 1 |
| Ocean Avenue | Yellowcard | 2004 | 1 |
| Ocean Blue | ABC | 1985 | 1 |
| Ocean Breeze | Pablo Cruise | 1975 | 1 |
| Ocean Drive | Lighthouse Family | 1995 | 1 |
| Ocean Front Property | George Strait | 1987 | 1 |
| Ochi Chornya (Dark Eyes) | Chet Atkins | | 1 |
| October | A-Ha | 1986 | 1 |
| October Road | James Taylor | 2002 | 1 |
| Octopus's Garden | The Beatles | 1969 | 1 |
| Ode To A Centipede | Buckner & Garcia | 1982 | 1 |
| Ode To A Koala Bear | Paul McCartney | 1983 | 1 |
| Ode To Billy Joe | Bobbie Gentry | 1967, 1976 | 1 |
| Ode To Billy Joe | Chet Atkins | | 1 |
| Ode To Joy | Jingle Cats | | 1 |
| Ode To My Family | The Cranberries | 1995 | 1 |
| Oedipus Rex | Tom Lehrer | | 1 |
| Off The Wall | Michael Jackson | 1980 | 1 |
| Off The Wall | Wisdome | 2000 | 2 |
| Oh | Ciara f/ Ludacris | 2005 | 1 |
| Oh Atlanta | Little Feat | 1974 | 1 |
| Oh Baby Mine (I Get So Lonely) | Chet Atkins | | 1 |
| Oh Boy | Cam'Ron f/ Juelz Santana | 2002 | 2 |
| Oh Carolina | Shaggy | 1993 | 1 |
| Oh Christmas Tree | Jingle Cats | | 1 |
| Oh Come All Ye Faithful | Jingle Cats | | 1 |
| Oh Daddy | Adrian Belew | 1989 | 1 |
| Oh Daddy | Fleetwood Mac | 1977 | 1 |
| Oh Darling | Supertramp | 1979 | 1 |
| Oh Diane | Fleetwood Mac | 1982 | 1 |
| Oh Dio Mio | Annette | 1960 | 1 |
| Oh Father | Madonna | 1989 | 1 |
| Oh Girl | The Chi-Lites | 1972 | 1 |
| Oh Girl | Paul Young | 1990 | 1 |
| Oh God, I Wish I Was Home Tonight | Rod Stewart | 1980 | 1 |
| Oh Happy Day | The Edwin Hawkins' Singers f/ Dorothy Combs Morrison | 1969 | 1 |
| Oh Holy Night | Jingle Cats | | 1 |
| Oh Holy Night | Jon Anderson | 1985 | 1 |
| Oh How Happy | Michael Jackson | | 1 |
| Oh How Happy | Shades Of Blue | 1966 | 1 |
| Oh Industry | Bette Midler | 1989 | 1 |
| Oh Jean | The Proclaimers | 1988 | 1 |
| Oh Johnny, Oh Johnny, Oh | The Andrews Sisters | 1939 | 1 |
| Oh Julie | Barry Manilow | 1982 | 1 |
| Oh Julie | The Crescendos | 1958 | 1 |
| Oh L'Amour | Erasure | 1986 | 3 |
| Oh Little Town Of Bethlehem | Jingle Cats | | 1 |
| Oh Lonesome Me | Don Gibson | 1958 | 1 |
| Oh Marie | Mitch Miller & The Gang | | 1 |
| Oh Me Oh My (I'm A Fool For You Baby) | Lulu | 1969 | 1 |
| Oh My My | Ringo Starr | 1974 | 1 |
| Oh No, Not My Baby | Maxine Brown | 1964 | 1 |
| Oh Pretty Woman | Roy Orbison & Friends | 1989 | 2 |
| Oh Sheila | Ready For The World | 1985 | 2 |
| Oh Sherrie | Steve Perry | 1984 | 1 |
| Oh Tara | The Knack | 1979 | 1 |
| Oh Very Young | Cat Stevens | 1974 | 1 |
| Oh Well | Fleetwood Mac | 1970 | 1 |
| Oh Well | Oh Well | | 1 |
| Oh Well | Rockets | 1979 | 1 |
| Oh What A Dream | Ruth Brown | 1954 | 1 |
| Oh What A Night For Dancing | Barry White | 1978 | 1 |
| Oh What A Nite | The Dells | 1956 | 1 |
| Oh What A World | Rufus Wainwright | 2003 | 1 |
| Oh What It Did To Me | Tanya Tucker | 1991 | 1 |
| Oh Yeah | Yello | 1985, 1987 | 3 |
| Oh! | Pee Wee Hunt & His Orchestra | 1953 | 1 |
| Oh! Carol | Neil Sedaka | 1959 | 1 |
| Oh! Darling | The Beatles | 1969 | 1 |
| Oh! Look At Me Now | Tommy Dorsey & His Orchestra | 1941 | 1 |
| Oh! Ma-Ma (The Butcher Boy) | The Andrews Sisters | 1938 | 1 |
| Oh! Ma-Ma (The Butcher Boy) | The Mills Brothers | | 1 |
| Oh! My Papa | Eddie Fisher | 1954 | 1 |
| Oh! No Not My Baby | Rod Stewart | 1973 | 1 |
| Oh! Susanna | (Don Charles Presents) The Singing Dogs | 1955 | 1 |
| Oh! What A Beautiful Morning | Bing Crosby & Trudy Erwin | 1943 | 1 |
| Oh! What It Seemed To Be | Frankie Carle & His Orchestra | 1946 | 1 |
| Oh, Babe, What Would You Say? | Hurricane Smith | 1972 | 1 |
| Oh, Boy! | The Crickets | 1957 | 1 |
| Oh, But I Do | Margaret Whiting | 1947 | 1 |
| Oh, Pretty Woman | Roy Orbison & The Candy Men | 1964 | 1 |
| Oh, What A Night | The Dells | 1969 | 1 |
| Oh, You Pretty Things | David Bowie | 1971 | 1 |
| Ohio | Crosby, Stills, Nash & Young | 1970 | 1 |
| Oh-Oh, I'm Falling In Love Again | Jimmie Rodgers | 1957, 1958 | 1 |
| Oi To The World | No Doubt | | 1 |
| Oiche Chiun (Silent Night) | Enya | 1994 | 1 |
| Oil And Water | Incubus | 2007 | 1 |
| Okay, This Is The End, Eh? | Bob & Doug McKenzie | 1981 | 1 |
| Okie From Muskogee | Merle Haggard & The Strangers | 1969 | 1 |
| Oklahoma Hills | Chet Atkins | | 1 |
| Oklahoma Hills | Hank Thompson & His Brazos Valley Boys | 1961 | 1 |
| O-La O-La (Hola Hola) | Cassandra | 1999 | 1 |
| Old And Wise | Alan Parsons Project | 1982 | 1 |
| Old Brown Shoe | The Beatles | 1970 | 1 |
| Old Cape Cod | Patti Page | 1957 | 1 |
| Old Dan's Records | Gordon Lightfoot | 1972 | 1 |
| Old Days | Chicago | 1975 | 1 |
| Old Dog, New Tricks | No Doubt | | 1 |
| Old Enough To Know Better | Wade Hayes | 1994, 1995 | 1 |
| Old Fashioned Boy (You're The One) | Stallion | 1977 | 1 |
| Old Flames Have New Names | Mark Chesnutt | 1992 | 1 |
| Old Hippie | Bellamy Brothers | 1985 | 1 |
| Old Home Filler-Up An' Keep On Truckin' Cafe | C.W. McCall | 1974 | 1 |
| Old Man | Neil Young | 1972 | 1 |
| Old Man & Me (When I Get To Heaven) | Hootie & The Blowfish | 1996 | 1 |
| Old Man On The Farm | Randy Newman | 1977 | 1 |
| Old Mother Reagan | Violent Femmes | 1986 | 1 |
| Old Pro | Ray Parker, Jr. & Raydio | 1981 | 1 |
| Old Rivers | Walter Brennan | 1962 | 1 |
| Old Siam, Sir | Wings | 1979 | 1 |
| Old Time Rock & Roll | Bob Seger & The Silver Bullet Band | 1979, 1983 | 2 |
| Old Town | Phil Lynott | 1982 | 1 |
| Old Toy Trains | Roger Miller | | 1 |
| Older Women | Ronnie McDowell | 1981 | 1 |
| Old-Fashion Love | Commodores | 1980 | 1 |
| Oldies Medley (Blue Moon, We Belong Together) | Vidal Brothers | 1997 | 1 |
| Ole Buttermilk Sky | Kay Kyser & His Orchestra | 1946 | 1 |
| Ole Slew Foot | Johnny Horton | 1961 | 1 |
| Olive | Ken Nordine | 1966 | 1 |
| Omegaman | The Police | 1981 | 1 |
| On & On | Erykah Badu | 1997 | 2 |
| On A Carousel | Glass Moon | 1982 | 1 |
| On A Carousel | The Hollies | 1967 | 1 |
| On A Clear Day You Can See Forever | Lawrence Welk & His Orchestra | | 1 |
| On A Day Like Today | Bryan Adams | 1998 | 1 |
| On A Slow Boat To China | Kay Kyser & His Orchestra | 1948 | 1 |
| On And On | Longpigs | 1998 | 1 |
| On And On | Stephen Bishop | 1977 | 1 |
| On And On And On | ABBA | 1981 | 1 |
| On Bended Knee | Boyz II Men | 1994 | 1 |
| On Broadway | The Drifters | 1963 | 1 |
| On Broadway | George Benson | 1978 | 2 |
| On Broadway | Percy Faith & His Orchestra | | 1 |
| On Campus | Dickie Goodman | 1969 | 1 |
| On Ice | Natasha King | 1983 | 1 |
| On My Honor | Donna Summer | 1979 | 1 |
| On My Knees | Bob Carlisle | 1997 | 1 |
| On My Knees | Charlie Rich w/ Janie Fricke | 1978 | 1 |
| On My Own | Katie Holmes | 2002 | 1 |
| On My Own | Patti LaBelle & Michael McDonald | 1986 | 1 |
| On My Own | Peach Union | 1997 | 3 |
| On My Way To Paradise | Bob Carlisle | 1997 | 1 |
| On Our Own | Bobby Brown | 1989 | 4 |
| On Sunday | 'Til Tuesday | 1986 | 1 |
| On The Accordion | Myron Floren | | 1 |
| On The Atchison, Topeka And The Santa Fe | Henry Mancini & His Orchestra | | 1 |
| On The Atchison, Topeka And The Santa Fe | Johnny Mercer & The Pied Pipers | 1945 | 1 |
| On The Banks Of The Wabash | The Mills Brothers | | 1 |
| On The Beach | Chris Rea | 1988 | 2 |
| On The Border | Al Stewart | 1977 | 1 |
| On The Boulevard | The Manhattan Transfer | 1981 | 1 |
| On The Dark Side | John Cafferty & The Beaver Brown Band | 1983, 1984 | 1 |
| On The Isle Of May | Connee Boswell | 1940 | 1 |
| On The Line | Tangier | 1989 | 1 |
| On The Loose | Saga | 1982 | 1 |
| On The Mend | Eye To Eye | 1982 | 1 |
| On The Other Hand | Randy Travis | 1985 | 1 |
| On The Radio | Donna Summer | 1980 | 2 |
| On The Radio | Regina Spektor | 2006 | 1 |
| On The Rebound | Floyd Cramer | 1961 | 1 |
| On The Road Again | Canned Heat | 1968 | 1 |
| On The Road Again | Willie Nelson | 1980 | 1 |
| On The Robert E. Lee | Neil Diamond | 1980 | 1 |
| On The Run | Electric Light Orchestra | 1979 | 1 |
| On The Run | Manfred Mann's Earth Band | | 1 |
| On The Run | Pink Floyd | 1973 | 1 |
| On The Shoreline | Genesis | 1991 | 1 |
| On The Shoulders Of Freaks | Henry Phillips | 1996 | 1 |
| On The Street Where You Live | Lawrence Welk & His Orchestra | 1956 | 1 |
| On The Street Where You Live | Vic Damone | 1956 | 1 |
| On The Turning Away | Pink Floyd | 1988 | 1 |
| On The Verge | Collin Raye | 1997 | 1 |
| On The Way To The Sky | Neil Diamond | 1982 | 1 |
| On The Way Up | Elisa Fiorillo | 1990 | 3 |
| On The Wing | T'Pau | 1987 | 1 |
| On The Wings Of Love | Jeffrey Osborne | 1982 | 1 |
| On This Day | Reba McEntire | 1987 | 1 |
| On Top Of Old Smoky | Terry Gilkyson & The Weavers | 1951 | 1 |
| On Top Of Spaghetti | Tom Glazer & The Do-Re-Mi Children's Chorus | 1963 | 1 |
| On Tuesday | Men Without Hats | 1987 | 1 |
| On Your Face | Earth, Wind & Fire | 1976 | 1 |
| On Your Shore | Enya | 1991 | 1 |
| On, On, On, On... | Tom Tom Club | 1982 | 1 |
| Once A Day | Connie Smith | 1964 | 1 |
| Once Bitten Twice Shy | Great White | 1989 | 1 |
| Once I Had A Love | Blondie | 1978 | 1 |
| Once In A Blue Moon | Sydney Forest | 1999 | 1 |
| Once In A Lifetime | Big Daddy | 1991 | 1 |
| Once In A Lifetime | Talking Heads | 1981, 1986 | 1 |
| Once In A While | Bert Kaempfert & His Orchestra | 1965 | 1 |
| Once In A While | Billy Dean | 1994 | 1 |
| Once In A While | The Chimes(1) | 1960 | 1 |
| Once In A While | Dishwalla | 1998 | 1 |
| Once In A While | Vic Dana | 1965 | 1 |
| Once In Love With Amy | Ray Bolger | 1949 | 1 |
| Once Is Enough | Aerosmith | 1987 | 1 |
| Once More With Feeling | Jerry Lee Lewis | 1970 | 1 |
| Once Upon A Christmas | Kenny Rogers & Dolly Parton | 1984 | 1 |
| Once Upon A Time | Charlie Byrd | | 1 |
| Once Upon A Time | Donna Summer | 1978 | 1 |
| Once Upon A Time | The Lettermen | 1962 | 1 |
| Once Upon A Time | Percy Faith & His Orchestra | | 1 |
| Once You Understand | Think | 1971, 1974 | 1 |
| Once You've Had The Best | George Jones | 1973 | 1 |
| One | Bee Gees | 1989 | 2 |
| One | Creed | 1999 | 1 |
| One | Metallica | 1989 | 1 |
| One | Nilsson | 1967 | 1 |
| One | Three Dog Night | 1969 | 1 |
| One 4 Da Head | Buzz Fiend | 1997 | 1 |
| One After 909 | The Beatles | 1970 | 1 |
| One And Only Man | Steve Winwood | 1990 | 2 |
| One Bad Apple (Don't Spoil The Whole Bunch) | The Osmonds | 1971 | 1 |
| One Better World | ABC | 1989 | 2 |
| One Bourbon, One Scotch, One Beer | George Thorogood & The Destroyers | 1977 | 1 |
| One Boy, One Girl | Collin Raye | 1995 | 1 |
| One By One | The Doobie Brothers | 1980 | 1 |
| One By One | Kitty Wells & Red Foley | 1954 | 1 |
| One Call Away | Chingy f/ J. Weav | 2003 | 1 |
| One Chain (Don't Make No Prison) | The Doobie Brothers | 1989 | 1 |
| One Child Of Love | Peaches & Herb | 1980 | 1 |
| One Child, One Day | Reba McEntire | 1999 | 1 |
| One Christmas Catalogue | Captain Sensible | 1984 | 1 |
| One Clear Voice | Peter Cetera | 1995 | 1 |
| One Country | Midnight Oil | 1990 | 1 |
| One Day In Your Life | Michael Jackson | 1981 | 1 |
| One Dozen Roses | Harry James & His Orchestra | 1942 | 1 |
| One Dozen Roses | The Mills Brothers | | 1 |
| One Dozen Roses | Nino Tempo & April Stevens | 1963 | 1 |
| One Dyin' And One Buryin' | Roger Miller | 1965 | 1 |
| One February Friday | Frankie Goes To Hollywood | 1984 | 1 |
| One Fine Day | The Chiffons | 1963 | 1 |
| One Fine Morning | Lighthouse | 1971 | 1 |
| One For My Baby (And One More For The Road) | Bette Midler | | 1 |
| One For Sorrow | Steps | 1998 | 1 |
| One For The Mockingbird | Cutting Crew | 1987 | 2 |
| One Good Woman | Peter Cetera | 1988 | 1 |
| One Hand Loose | Charlie Feathers | 1956 | 1 |
| One Hand, One Heart | Debbie Gibson | 1990 | 1 |
| One Has My Name (The Other Has My Heart) | Barry Young | 1965 | 1 |
| One Has My Name (The Other Has My Heart) | Jerry Lee Lewis | 1969 | 1 |
| One Headlight | The Wallflowers | 1997 | 1 |
| One Hit (To The Body) | The Rolling Stones | 1986 | 1 |
| One Hundred Ways | Quincy Jones f/ James Ingram | 1981 | 2 |
| One In A Million | The Romantics | 1984 | 1 |
| One In A Million | Trixter | 1990 | 3 |
| One In A Million You | Larry Graham | 1980 | 1 |
| One In Ten Words | Spoons | 1982 | 1 |
| One Jump Ahead | Brad Kane | 1992 | 1 |
| One Kiss For Old Times' Sake | Ronnie Dove | 1965 | 1 |
| One Kiss Per Minute | Jaya | 1990 | 6 |
| One Last Breath | Creed | 2002 | 1 |
| One Last Kiss | Bobby Vee | 1960 | 1 |
| One Last Kiss | J. Geils Band | 1978 | 1 |
| One Less Bell To Answer | The 5th Dimension | 1970 | 1 |
| One Less Set Of Footsteps | Jim Croce | 1973 | 1 |
| One Little Candle | Chicago | | 1 |
| One Lonely Night | REO Speedwagon | 1985 | 1 |
| One Long Last Look | Paul Cotton | 1990 | 1 |
| One Love | Pat Benatar | 1988 | 1 |
| One Love In My Lifetime | Diana Ross | 1976 | 1 |
| One Man Army | Our Lady Peace | 1999 | 1 |
| One Man Band | Leo Sayer | 1974, 1975 | 1 |
| One Man Band | Three Dog Night | 1970 | 1 |
| One Man Revival | Bob Carlisle | 1997 | 1 |
| One Man, One Woman | ABBA | 1977 | 1 |
| One Mint Julip | Ray Charles | 1961 | 1 |
| One Minute Man | Missy "Misdemeanor" Elliott f/ Ludacris | 2001 | 1 |
| One Mistake | Seduction | 1989 | 1 |
| One Moment In Time | Whitney Houston | 1988 | 1 |
| One More Astronaut | I Mother Earth | 1996 | 2 |
| One More Chance | Alias | 1990 | 1 |
| One More Chance | Janet Jackson | 1993 | 1 |
| One More Chance | Perfect Gentlemen | 1990 | 4 |
| One More Chance | Pet Shop Boys | 1984 | 2 |
| One More Chance | Will.I.Am | 2007 | 1 |
| One More Chance / Stay With Me | The Notorious B.I.G. | 1995 | 1 |
| One More Day | Diamond Rio | 2000, 2001 | 1 |
| One More Minute | "Weird Al" Yankovic | 1985 | 1 |
| One More Night | Amber | 1997 | 1 |
| One More Night | Pablo Cruise | 1981 | 1 |
| One More Night | Phil Collins | 1985 | 2 |
| One More Night | Stephen Bishop | 1977 | 1 |
| One More Shot | C-Bank f/ Jenny Burton | 1983 | 1 |
| One More Time | April Wine | 1981 | 1 |
| One More Time | Daft Punk | 2001 | 1 |
| One More Time | Ray Price | 1960 | 1 |
| One More Time | Sister Sledge | 1979 | 1 |
| One More Try | George Michael | 1988 | 1 |
| One More Try | Timmy -T- | 1990 | 1 |
| One Nation Under A Groove | Funkadelic | 1978 | 1 |
| One Night | After 7 | 1989 | 1 |
| One Night | Elvis Presley | 1958 | 1 |
| One Night (For Lovers) | Barry Gibb | 1984 | 1 |
| One Night (Of Sin) | Smiley Lewis | 1956 | 1 |
| One Night In A Lifetime | Donna Summer | 1979 | 1 |
| One Night In Bangkok | Murray Head | 1985 | 2 |
| One Night In Bangkok | Robey | 1985 | 1 |
| One Night Love Affair | Bryan Adams | 1985 | 1 |
| One Night Only | Sylvester | 1983 | 1 |
| One Of A Kind (Love Affair) | Spinners | 1973 | 1 |
| One Of My Turns | Pink Floyd | 1979 | 1 |
| One Of Our Submarines | Thomas Dolby | 1983 | 2 |
| One Of The Living | Tina Turner | 1985 | 3 |
| One Of These Days | Donny & Marie Osmond | 1975 | 1 |
| One Of These Days | Michael James | 1995 | 1 |
| One Of These Nights | Eagles | 1975 | 1 |
| One Of Us | A*Teens | 1999 | 1 |
| One Of Us | ABBA | 1983 | 1 |
| One Of Us | Joan Osborne | 1995 | 1 |
| One On One | Daryl Hall & John Oates | 1983 | 2 |
| One Or The Other | Paula Abdul | 1989 | 2 |
| One Piece At A Time | Johnny Cash & The Tennessee Three | 1976 | 1 |
| One Promise Too Late | Reba McEntire | 1987 | 1 |
| One Scotch, One Bourbon, One Beer | Amos Milburn & His Aladdin Chickenshackers | 1953 | 1 |
| One Simple Thing | The Stabilizers | 1986 | 1 |
| One Small Day | Ultravox | 1984 | 1 |
| One Step Ahead | Split Enz | 1981 | 1 |
| One Step At A Time | Jordin Sparks | 2008 | 1 |
| One Step Away | Ratt | 1990 | 1 |
| One Step Beyond... | Madness | 1979 | 2 |
| One Step Closer | The Doobie Brothers | 1980 | 1 |
| One Step Closer | Linkin Park | 2001 | 1 |
| One Step Closer To You | Gavin Christopher | 1986 | 2 |
| One Step Forward | The Desert Rose Band | 1987 | 1 |
| One Summer Night | The Danleers | 1958 | 1 |
| One Sweet Day | Mariah Carey & Boyz II Men | 1995 | 1 |
| One Thing | Finger Eleven | 2004 | 1 |
| One Thing Leads To Another | The Fixx | 1983 | 3 |
| One Thousand Shadows | Romeo Void | 1992 | 1 |
| One Tin Soldier (The Legend Of Billy Jack) | Coven | 1971, 1973 | 1 |
| One Toke Over The Line | Brewer & Shipley | 1971 | 1 |
| One Track Mind | The Knickerbockers | 1966 | 1 |
| One Trick Pony | Paul Simon | 1980 | 1 |
| One Vision | Queen | 1985 | 2 |
| One Voice | Barry Manilow | 1979 | 2 |
| One Voice | Billy Gilman | 2000 | 1 |
| One Way Or Another | Blondie | 1979 | 1 |
| One Way Out | The Allman Brothers Band | 1972 | 1 |
| One Week | Barenaked Ladies | 1998 | 1 |
| One Wish | Ray J | 2005 | 1 |
| One Word | Elliott Yamin | 2007 | 1 |
| One World (Not Three) | The Police | 1981 | 1 |
| One's On The Way | Loretta Lynn | 1972 | 1 |
| Onion Skin | Boom Crash Opera | 1990 | 2 |
| Online | Brad Paisley | 2007 | 1 |
| Online Songs | Blink-182 | 2001 | 1 |
| Only | Nine Inch Nails | 2005 | 1 |
| Only A Dream | EYC | 1999 | 1 |
| Only A Lonely Heart Knows | Barbara Mandrell | 1984 | 1 |
| Only A Lonely Heart Sees | Felix Cavaliere | 1980 | 1 |
| Only A Memory | The Smithereens | 1988 | 1 |
| Only Daddy That'll Walk The Line | Waylon Jennings | 1968 | 1 |
| Only Forever | Bing Crosby | 1940 | 1 |
| Only God Can Judge Me | 2Pac | 1996 | 1 |
| Only God Knows Why | Kid Rock | 2000 | 1 |
| Only Happy When It Rains | Garbage | 1996 | 1 |
| Only Here For A Little While | Billy Dean | 1990 | 1 |
| Only If... | Enya | 1998 | 1 |
| Only In America | Brooks & Dunn | 2001 | 1 |
| Only In America | Jay & The Americans | 1963 | 1 |
| Only In Dreams | Weezer | 1994 | 1 |
| Only In Miami | Bette Midler | 1983 | 1 |
| Only In My Dreams | Debbie Gibson | 1987 | 6 |
| Only In Your Heart | America | 1973 | 1 |
| Only Love | Stephen Bishop | 1981 | 1 |
| Only Love | Susanna Hoffs | 1991 | 1 |
| Only Love Can Break A Heart | Gene Pitney | 1962 | 1 |
| Only Love Can Break Your Heart | Neil Young | 1970 | 1 |
| Only My Heart Can Tell | Paul Carrack | 1989 | 2 |
| Only My Heart Talkin' | Alice Cooper | 1989 | 2 |
| Only One Love In My Life | Ronnie Milsap | 1978 | 1 |
| Only One Word | Propaganda(2) | 1990 | 1 |
| Only Over You | Fleetwood Mac | 1982 | 1 |
| Only Sixteen | Dr. Hook | 1976 | 1 |
| Only Sixteen | Sam Cooke | 1959 | 2 |
| Only The Good Die Young | Billy Joel | 1978 | 1 |
| Only The Heart Within You | Stephen Bishop | 1978 | 1 |
| Only The Lonely | The Motels | 1982 | 1 |
| Only The Lonely (Know How I Feel) | Roy Orbison | 1960 | 1 |
| Only The Strong Survive | Jerry Butler | 1969 | 1 |
| Only The Wind | Billy Dean | 1992 | 1 |
| Only The Young | Journey | 1985 | 1 |
| Only Time | Enya | 2001 | 3 |
| Only Time Will Tell | Asia | 1982 | 3 |
| Only U | Antiloop | 2000 | 1 |
| Only U | Ashanti | 2004 | 1 |
| Only Uh Uh | Juliette Schoppmann | 2005 | 1 |
| Only Wanna Be With You | Hootie & The Blowfish | 1995 | 1 |
| Only When I Lose Myself | Depeche Mode | 1998 | 1 |
| Only When You Leave | Spandau Ballet | 1984 | 2 |
| Only Women | Alice Cooper | 1975 | 1 |
| Only Women Bleed | Favorite Angel | 1990 | 1 |
| Only Yesterday | Carpenters | 1975 | 1 |
| Only You | The Flying Pickets | 1983 | 1 |
| Only You | M+M | 1986 | 1 |
| Only You | Portishead | 1997 | 1 |
| Only You | Ray Conniff & His Orchestra & Chorus | | 1 |
| Only You | Yazoo | 1983 | 1 |
| Only You (And You Alone) | The Platters | 1955 | 1 |
| Only You Know And I Know | Dave Mason | 1970 | 1 |
| Only You Know And I Know | Delaney & Bonnie | 1971 | 1 |
| Only You Know And I Know | Phil Collins | 1985 | 1 |
| Only You Know And I Know | Rita Coolidge | 1971 | 1 |
| Only Your Heart | Keedy | 1991 | 1 |
| Oo Wee Baby, I Love You | Fred Hughes | 1965 | 1 |
| Ooby Dooby | Roy Orbison & The Teen Kings | 1956 | 1 |
| Oochie Wally | QB Finest f/ Nas & Bravehearts | 2001 | 1 |
| Ooh Baby Baby | Linda Ronstadt | 1978 | 1 |
| Ooh Baby Baby | The Miracles | 1965 | 1 |
| Ooh Baby Baby | Sylvester | 1981 | 1 |
| Ooh Baby Baby | Zapp | 1989 | 1 |
| O-o-h Child | The Five Stairsteps | 1970 | 2 |
| Ooh It's Kinda Crazy | SoulDecision | 2000 | 1 |
| Ooh La La | Coolio | 1997 | 1 |
| Ooh La La | The Wiseguys | 2000 | 1 |
| Ooh Lala (I Can't Get Over You) | Perfect Gentlemen | 1990 | 3 |
| Ooh Ooh Song | Pat Benatar | 1985 | 1 |
| Ooh Poo Pah Doo | Jessie Hill | 1960 | 2 |
| Ooh You're Gold | Wilson Phillips | 1990 | 1 |
| Ooh! | Mary J. Blige | 2003 | 1 |
| Ooh! My Soul | Little Richard | 1958 | 1 |
| Oon-Ga-Wa | Johnny Parker & The Zirkons | | 1 |
| Oooh | De La Soul f/ Redman | 2000 | 2 |
| Oooh Baby | C+C Music Factory | 1990 | 1 |
| Oooh This I Need | Elisa Fiorillo | 1991 | 1 |
| Ooops Up | Snap! | 1990 | 4 |
| Oops (Oh My) | Tweet | 2002 | 1 |
| Oops!...I Did It Again | Britney Spears | 2000 | 3 |
| Oo-Wee | Ringo Starr | 1975 | 1 |
| Open | Queensryche | 2003 | 1 |
| Open Arms | Journey | 1982 | 1 |
| Open My Eyes | Nazz | 1969 | 1 |
| Open Road | Bryan Adams | 2004 | 1 |
| Open Sesame | Kool & The Gang | 1976 | 1 |
| Open The Door To Your Heart | Darrell Banks | 1966 | 1 |
| Open The Door, Richard! | Count Basie & His Orchestra | 1947 | 1 |
| Open Up | Leftfield | 1994 | 1 |
| Open Up Your Door | The Romantics | 1983 | 1 |
| Open Up Your Heart | Buck Owens & The Buckaroos | 1966 | 1 |
| Open Up Your Mind (Wide) | The Gap Band | | 1 |
| Open Your Eyes | The Doobie Brothers | 1978 | 1 |
| Open Your Heart | The Human League | 1981 | 1 |
| Open Your Heart | Lavender Diamond | 2007 | 1 |
| Open Your Heart | Madonna | 1986 | 1 |
| Opening Titles (Including Underground) | David Bowie | 1986 | 1 |
| Opening: I Can't Turn You Loose | Blues Brothers | 1978 | 1 |
| Operator | Midnight Star | 1984 | 3 |
| Operator (That's Not The Way It Feels) | Jim Croce | 1972 | 1 |
| Opinions | The Fixx | 1983 | 1 |
| Opportunities (Let's Make Lots Of Money) | Pet Shop Boys | 1985, 1986 | 5 |
| Opposites Attract | Paula Abdul w/ The Wild Pair | 1989 | 8 |
| Optimistic | Radiohead | 2000 | 2 |
| Opus 17 (Don't You Worry 'Bout Me) | The 4 Seasons | 1966 | 1 |
| Orange Barrel Polka | Robert Lund | | 1 |
| Orange Blossom Special | Billy Vaughn & His Orchestra | 1961 | 1 |
| Orange Blossom Special | Charlie McCoy | 1973 | 1 |
| Orange Blossom Special | Flatt & Scruggs | 1967 | 1 |
| Orange Blossom Special | The Flying Burrito Brothers | 1972 | 1 |
| Orange Blossom Special | Johnny Cash | 1965 | 1 |
| Orange Colored Sky | Nat "King" Cole | 1950 | 1 |
| Orbit | Fred Schneider | 1994 | 1 |
| Orbit | Fred Schneider & The Shake Society | 1984 | 1 |
| Orchard Road | Leo Sayer | 1983 | 1 |
| Ordinary Average Guy | Joe Walsh w/ Glenn Frey | 1991 | 2 |
| Ordinary Day | Vanessa Carlton | 2002 | 1 |
| Ordinary Miracles | Barbra Streisand | 1994 | 1 |
| Ordinary People | John Legend | 2005 | 2 |
| Ordinary World | Duran Duran | 1993 | 1 |
| Oriel Window | Enya | 1988 | 1 |
| Original Fire | Audioslave | 2006 | 1 |
| Original Music From The Wonder Years (Theme 1) | The Wonder Years | | 1 |
| Original Music From The Wonder Years (Theme 2) | The Wonder Years | | 1 |
| Original Prankster (The Real Deal) | The Offspring | 2000 | 2 |
| Original Sin | InXS | 1984 | 3 |
| Orinoco Flow (Sail Away) | Enya | 1989 | 2 |
| Osama Yo Mama | Ray Stevens | 2001, 2002 | 1 |
| Other | Meco | 1977 | 1 |
| Other 99 | Big Audio Dynamite | 1988 | 1 |
| Other Galactic Funk | Meco | | 1 |
| Other Side Of The Coin | Jeffrey Osborne | 1983 | 1 |
| Other Voices | The Cure | 1981 | 1 |
| Otherside | Red Hot Chili Peppers | 2000 | 1 |
| Otro Amor | Wilson Phillips | 1991 | 2 |
| Otto Titsling | Bette Midler | 1989 | 1 |
| Ou Est Le Soleil? | Paul McCartney | 1989 | 1 |
| Ouija Board, Ouija Board | Morrissey | 1990 | 1 |
| Our Anniversary | Shep & The Limelites | 1962 | 1 |
| Our Day Will Come | Frankie Valli | 1975 | 2 |
| Our Day Will Come | Percy Faith & His Orchestra | | 1 |
| Our Day Will Come | Ruby & The Romantics | 1962 | 1 |
| Our House | Crosby, Stills, Nash & Young | 1970 | 1 |
| Our House | Madness | 1983 | 3 |
| Our Last Summer | A*Teens | 1999 | 1 |
| Our Last Summer | ABBA | 1980 | 1 |
| Our Lips Are Sealed | Fun Boy Three | 1983 | 2 |
| Our Lips Are Sealed | Go-Go's | 1981 | 1 |
| Our Love | Donna Summer | 1979 | 2 |
| Our Love Affair | Tommy Dorsey & His Orchestra | 1940 | 1 |
| Our Song | Taylor Swift | 2007 | 1 |
| Our Song | Yes | 1983 | 1 |
| Our Time Now | Plain White T's | 2008 | 1 |
| Our Velocity | Maximo Park | 2007 | 1 |
| Our Winter Love | Bill Pursell | 1962 | 1 |
| Out Behind The Barn | "Little" Jimmy Dickens | 1954 | 1 |
| Out Here On My Own | Irene Cara | 1980 | 1 |
| Out In The Country | Three Dog Night | 1970 | 1 |
| Out In The Fields | Thin Lizzy | 1987 | 1 |
| Out In The Streets | Blondie | 1994 | 1 |
| Out In The Streets | Trio | 1983 | 1 |
| Out Of Bounds | Stewart Copeland w/ Adam Ant | 1986 | 2 |
| Out Of Control | Jefferson Starship | 1982 | 1 |
| Out Of Control | Oingo Boingo | 1990 | 1 |
| Out Of Control (State Of Emotion) | Kenna | 2007 | 1 |
| Out Of Gas | Floyd Robinson | 1961 | 1 |
| Out Of Hand | Gary Stewart | 1974 | 1 |
| Out Of Limits | The Marketts | 1963 | 1 |
| Out Of Love | Toto | 1990 | 1 |
| Out Of Mind Out Of Sight | The Models | 1986 | 1 |
| Out Of My Head | Fastball | 1999 | 1 |
| Out Of My Head And Back In My Bed | Loretta Lynn | 1977, 1978 | 1 |
| Out Of My Mind | Soho | 1990 | 1 |
| Out Of Nowhere | Bert Kaempfert & His Orchestra | 1965 | 1 |
| Out Of Nowhere | The Four Freshmen | | 1 |
| Out Of Sight, Out Of Mind | The Five Keys | 1956 | 1 |
| Out Of Sync | Devo | 1982 | 1 |
| Out Of The Blue | Debbie Gibson | 1988 | 2 |
| Out Of The Blue | Enya | 1988 | 1 |
| Out Of The Blue | Roxy Music | 1975 | 1 |
| Out Of Touch | Daryl Hall & John Oates | 1984 | 2 |
| Out Of Work | Gary (U.S.) Bonds | 1982 | 1 |
| Out On My Own | Romeo Void | 1984 | 1 |
| Out The Window | Violent Femmes | 1991 | 1 |
| Outa-Space | Billy Preston | 1972 | 1 |
| Outlands | The Orb | 1991 | 1 |
| Outlaw | War | 1982 | 1 |
| Outlaw Blues | Pat Benatar | 1984 | 1 |
| Outrageous | Britney Spears | 2004 | 1 |
| Outrageous | Oingo Boingo | 1987 | 1 |
| Outro | Limp Bizkit | 2001 | 1 |
| Outside | The Fixx | 1983 | 1 |
| Outside | George Michael | | 1 |
| Outside | Staind | 2001 | 1 |
| Outside Help | Johnny Rivers | | 1 |
| Outside The Gates Of Heaven | Lou Christie | 1966 | 1 |
| Outside The Wall | Pink Floyd | 1979 | 1 |
| Outsider | Ramones | 1983 | 1 |
| Outstanding | The Gap Band | 1983 | 1 |
| Outta My System | Bow Wow f/ T-Pain & Johnta Austin | 2007 | 1 |
| Over & Over | Nelly f/ Tim McGraw | 2004 | 1 |
| Over And Over | Bobby Day | 1958 | 1 |
| Over And Over | Dave Clark Five | 1965 | 1 |
| Over And Over | Emjay | 1999 | 1 |
| Over And Over | Joe Walsh | 1978 | 1 |
| Over And Over | Madonna | 1984 | 1 |
| Over And Over | Pajama Party | 1989 | 4 |
| Over And Over | Timmy -T- | 1991 | 1 |
| Over And Over | Wilson Phillips | 1990 | 1 |
| Over My Head | Fleetwood Mac | 1975 | 1 |
| Over My Head | Toni Basil | 1984 | 1 |
| Over My Head (Cable Car) | The Fray | 2006 | 1 |
| Over The Edge | The Almighty | 1993 | 1 |
| Over The Hills And Far Away | Led Zeppelin | 1973 | 1 |
| Over The Line | Eddie Schwartz | 1982 | 1 |
| Over The Mountain, Across The Sea | Johnnie & Joe | 1957, 1960 | 1 |
| Over The Rainbow | Henry Mancini & His Orchestra | | 1 |
| Over The Rainbow | Liberace | | 1 |
| Over The Waves Waltz | Myron Floren | | 1 |
| Over Under Sideways Down | The Yardbirds | 1966 | 1 |
| Over You | Daughtry | 2007 | 1 |
| Over You | Gary Puckett & The Union Gap | 1968 | 1 |
| Overground | Siouxsie & The Banshees | 1978 | 1 |
| Overjoyed | Stevie Wonder | 1986 | 1 |
| Overkill | Men At Work | 1983 | 1 |
| Overload | Sugababes | 2001 | 1 |
| Overnight | Bee Gees | 1987 | 1 |
| Overnight Sensation (Hit Record) | Raspberries | 1974 | 1 |
| Overprotected | Britney Spears | 2002 | 2 |
| Overture | Carpenters | 1978 | 1 |
| Overture From Tommy (A Rock Opera) | The Assembled Multitude | 1970 | 1 |
| Owner Of A Lonely Heart | Yes | 1983 | 6 |
| Oye Como Va | Santana | 1971 | 1 |
| Oye Mi Canto | Gloria Estefan | 1989 | 3 |
| Ozark Mountain Jubilee | Oak Ridge Boys | 1983 | 1 |
