Des O'Connor
Songs:
I Pretend
Alan O'Day
Songs:
Undercover Angel
Rosie O'Donnell
Songs:
Christmas (Baby, Please Come Home) (& Cher) - White Christmas (& Elton John)
Johnny O'Keefe
Songs:
She's My Baby

Alexander O'Neal
Songs: Sunshine - Fake - Saturday Love (& Cherrelle) - If You Were Here Tonight - Criticize
Songs: Sunshine - Fake - Saturday Love (& Cherrelle) - If You Were Here Tonight - Criticize
Paul Oakenfold
Songs:
Rubberneckin' Remix (& Elvis Presley) - Starry Eyed Surprise (& Shifty Sherlock)

Oasis
Noel Gallagher & Liam Gallagher
See also: Beady Eye
Songs: Wonderwall - Don't Look Back in Anger - Morning Glory - Rock 'n' Roll Star - Slide Away
Noel Gallagher & Liam Gallagher
See also: Beady Eye
Songs: Wonderwall - Don't Look Back in Anger - Morning Glory - Rock 'n' Roll Star - Slide Away
Agnes Obel
Songs:
Riverside
OBZ
Songs:
Ik ben kachel
Ocean
Songs:
Put Your Hand in the Hand
Ocean Drive
Songs:
Without You (Perdue sans toi) (& DJ Oriska)

Tom Odell
Songs: Another Love - Half as Good as You (& Alice Merton) - Heal - Long Way Down - Real Love
Songs: Another Love - Half as Good as You (& Alice Merton) - Heal - Long Way Down - Real Love

Ofenbach (DJs)
Songs: Shivers (& Ed Sheeran) - Katchi (& Nick Waterhouse) - Rock It - Head Shoulders Knees & Toes (& Quarterhead & Norma Jean Martine) - Be Mine
Songs: Shivers (& Ed Sheeran) - Katchi (& Nick Waterhouse) - Rock It - Head Shoulders Knees & Toes (& Quarterhead & Norma Jean Martine) - Be Mine
Jacques Offenbach
Songs:
Les Contes d'Hoffmann : Barcarolle (Belle nuit & ô nuit d'amour) - La Vie parisienne : Rondo du brésilien
Ohio Express
Songs:
Yummy Yummy Yummy
Oklahoma! (film)
Songs:
Oklahoma

Oklahoma! (musical)
The musical (1943)
See also:Oklahoma! (film)
Songs: Oh What a Beautiful Morning - I Cain't Say No - The Surrey with the Fringe on Top - All Er Nothin' (Celeste Holm & Lee Dixon) - Out of my Dreams
The musical (1943)
See also:Oklahoma! (film)
Songs: Oh What a Beautiful Morning - I Cain't Say No - The Surrey with the Fringe on Top - All Er Nothin' (Celeste Holm & Lee Dixon) - Out of my Dreams
Ol' 55
Songs:
Looking for an Echo
Old 97's
Songs:
I Don't Know What Christmas Is (But Christmas Time Is Here) (Guardians of the Galaxy) - Here It Is Christmastime (& Kevin Bacon)
Mike Oldfield
Songs:
Moonlight Shadow (& Maggie Reilly) - Sailing (& Luke Spiller) - To France (& Maggie Reilly) - Shadow on the Wall (& Roger Chapman)

Oliver! (musical)
Musicals & Broadway 1960
Songs: As Long As He Needs Me - Where Is Love? - Consider Yourself - You've Got to Pick a Pocket or Two - Be Back Soon
Musicals & Broadway 1960
Songs: As Long As He Needs Me - Where Is Love? - Consider Yourself - You've Got to Pick a Pocket or Two - Be Back Soon

Olly Murs
Oliver "Olly" Stanley Murs
Songs: Dance with Me Tonight - I Wan'na Be Like You (& Robbie Williams) - I Hate You When You're Drunk - Dear Darlin' - Army of Two
Oliver "Olly" Stanley Murs
Songs: Dance with Me Tonight - I Wan'na Be Like You (& Robbie Williams) - I Hate You When You're Drunk - Dear Darlin' - Army of Two
Olympe
Songs:
Ce rêve bleu (& Joyce Jonathan) - Désenchantée - Hometown Glory - Superstar - Si maman si

Don Omar
Songs: Danza kuduro (& Lucenzo) - Dile - Taboo - Dutty Love (& Natti Natasha) - Dale don dale (& Glory)
Songs: Danza kuduro (& Lucenzo) - Dile - Taboo - Dutty Love (& Natti Natasha) - Dale don dale (& Glory)

Omarion
See also: B2K
Songs: Let Me Hold You (& Lil' Bow Wow) - O - Ice Box - Post to Be (& Chris Brown & Jhené Aiko) - Entourage
See also: B2K
Songs: Let Me Hold You (& Lil' Bow Wow) - O - Ice Box - Post to Be (& Chris Brown & Jhené Aiko) - Entourage
OMC
Songs:
How Bizarre
Omega (band)
Songs:
Gyöngyhajú lány

OMI
Songs: Cheerleader - Cheerleader (Felix Jaehn Remix) - Hula Hoop - Jambo (& Giusy Ferreri & Takagi & Ketra)
Songs: Cheerleader - Cheerleader (Felix Jaehn Remix) - Hula Hoop - Jambo (& Giusy Ferreri & Takagi & Ketra)

On a tous quelque chose de Johnny
See also: Johnny Hallyday
Songs: Noir c'est noir (Lisandro Cuxi) - Gabrielle (Thomas Dutronc) - Requiem pour un fou (Florent Pagny) - Toute la musique que j'aime (Louane) - Les coups (FFF)
See also: Johnny Hallyday
Songs: Noir c'est noir (Lisandro Cuxi) - Gabrielle (Thomas Dutronc) - Requiem pour un fou (Florent Pagny) - Toute la musique que j'aime (Louane) - Les coups (FFF)

One Piece (ワンピース)
Songs: We Are! (ウィーアー!) (Hiroshi Kitadani) - Binks' Sake - Binkusu no Sake (ビンクスの酒) - Binks' Rum - Le bon rhum de Binks
Songs: We Are! (ウィーアー!) (Hiroshi Kitadani) - Binks' Sake - Binkusu no Sake (ビンクスの酒) - Binks' Rum - Le bon rhum de Binks

OneRepublic
Songs: Counting Stars - I Ain't Worried (Top Gun: Maverick) - Run - Feel Again - I Lived
Songs: Counting Stars - I Ain't Worried (Top Gun: Maverick) - Run - Feel Again - I Lived
Oliver Onions
Songs:
Dune Buggy (Altrimenti ci arrabbiamo)
Oomph!
Songs:
Augen Auf!

Trijntje Oosterhuis
See also: Total Touch
Songs: That's What Friends Are For - De zee - Nu dat jij er bent - Kom maar bij mij (Beste Zangers 2018) - Ken je mij
See also: Total Touch
Songs: That's What Friends Are For - De zee - Nu dat jij er bent - Kom maar bij mij (Beste Zangers 2018) - Ken je mij
Opus
Songs:
Live Is Life

Rita Ora
Songs: Praising You (& Fatboy Slim) - Girls - Black Widow (& Iggy Azalea) - Anywhere - Your Song
Songs: Praising You (& Fatboy Slim) - Girls - Black Widow (& Iggy Azalea) - Anywhere - Your Song
Oran Juice Jones
Songs:
The Rain

Orchestral Manoeuvres in the Dark
OMD
Songs: If You Leave (Pretty in Pink) - Electricity - Pandora's Box - Secret - (Forever) Live and Die
OMD
Songs: If You Leave (Pretty in Pink) - Electricity - Pandora's Box - Secret - (Forever) Live and Die
La oreja de Van Gogh
Songs:
Cuídate - Rosas - La playa - Sin miedo a nada (& Álex Ubago) - 20 de Enero

Orelsan
See also: Gringe & Casseurs Flowters
Songs: La quête - Basique - La Terre est ronde - Tout va bien - Défaite de famille
See also: Gringe & Casseurs Flowters
Songs: La quête - Basique - La Terre est ronde - Tout va bien - Défaite de famille
Orianthi
Songs:
According to You
Benjamin Orr
Songs:
Stay the Night
Os Paralamas do Sucesso
Songs:
Lanterna dos Afogados - Vital e sua moto - Uma brasileira (& Djavan) - Meu erro - Ska
Osborne Brothers
Songs:
Rocky Top

Jeffrey Osborne
See also: L.T.D.
Songs: Far Longer Than Forever (& Regina Belle (The Swan Princess)) - On the Wings of Love - Stay With Me Tonight - You Should Be Mine (The Woo Woo Song) - Stranger (& L.T.D.)
See also: L.T.D.
Songs: Far Longer Than Forever (& Regina Belle (The Swan Princess)) - On the Wings of Love - Stay With Me Tonight - You Should Be Mine (The Woo Woo Song) - Stranger (& L.T.D.)

Ozzy Osbourne
See also: Black Sabbath & Kelly Osbourne
Songs: Crazy Train - Perry Mason - Hellraiser - Crazy Babies - Take What You Want (& Post Malone & Travis Scott)
See also: Black Sabbath & Kelly Osbourne
Songs: Crazy Train - Perry Mason - Hellraiser - Crazy Babies - Take What You Want (& Post Malone & Travis Scott)
Osibisa
Songs:
Sunshine Day
Jimmy Osmond
Songs:
Mother of Mine

Otis Day and the Knights
Musical film National Lampoon's Animal House
Songs: Shout - Shama Lama Ding Dong
Musical film National Lampoon's Animal House
Songs: Shout - Shama Lama Ding Dong

Ottawan
Songs: D.I.S.C.O (English version) - T'es OK - Hands Up (Give Me Your Heart) - Haut les mains (Donne-moi ton cœur) - D.I.S.C.O (version française)
Songs: D.I.S.C.O (English version) - T'es OK - Hands Up (Give Me Your Heart) - Haut les mains (Donne-moi ton cœur) - D.I.S.C.O (version française)
Otto Knows
Songs:
Million Voices
Maaike Ouboter
Songs:
Dat ik je mis

OutKast
Songs: Int'l Players Anthem (I Choose You) (& UGK) - Ms. Jackson - Hey Ya! (Radio Mix - Club Mix) - Elevators (Me & You) - So Fresh, So Clean
Songs: Int'l Players Anthem (I Choose You) (& UGK) - Ms. Jackson - Hey Ya! (Radio Mix - Club Mix) - Elevators (Me & You) - So Fresh, So Clean
Outlandish
Songs:
Aïcha
Outlaws (US)
Songs:
There Goes Another Love Song - Ghost Riders in the Sky - Green Grass and High Tides (Short version)
Outwork
Songs:
Elektro (Dance Remix)

Over the Moon
Songs: Rocket to the Moon - Ultraluminary (Phillipa Soo) - Rocket to the Moon (Reprise)
Songs: Rocket to the Moon - Ultraluminary (Phillipa Soo) - Rocket to the Moon (Reprise)
Chord Overstreet
Songs:
Hold On
Jason Owen
Songs:
The Power of Love

Buck Owens
Buck Owens & His Buckaroos
Songs: Rollin' In My Sweet Baby's Arms - Crying Time (& His Buckaroos) - Keys In The Mailbox - Foolin' Around - I've Got A Tiger By The Tail
Buck Owens & His Buckaroos
Songs: Rollin' In My Sweet Baby's Arms - Crying Time (& His Buckaroos) - Keys In The Mailbox - Foolin' Around - I've Got A Tiger By The Tail

Owl City
Adam Young
Songs: Good Time (& Carly Rae Jepsen) - Fireflies - When Can I See You Again - Shine Your Way (& Young & Yuna) - Vanilla Twilight
Adam Young
Songs: Good Time (& Carly Rae Jepsen) - Fireflies - When Can I See You Again - Shine Your Way (& Young & Yuna) - Vanilla Twilight
Oxlade
Songs:
Ku Lo Sa (a Colors Show)

Ozuna
Songs: Te boté (Remix) - Taki Taki (& DJ Snake, Selena Gomez & Cardi B) - Monotonía (& Shakira) - Arhbo (& Gims & RedOne) - Criminal (& Natti Natasha)
Songs: Te boté (Remix) - Taki Taki (& DJ Snake, Selena Gomez & Cardi B) - Monotonía (& Shakira) - Arhbo (& Gims & RedOne) - Criminal (& Natti Natasha)