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

Daniel O'Donnell
Songs: Don't Take the Good Times for Granted (& David James) - Danny Boy - My Shoes Keep Walking Back to You - Will You Travel Down This Road with Me (& Isla Grant) - The Wedding Song
Songs: Don't Take the Good Times for Granted (& David James) - Danny Boy - My Shoes Keep Walking Back to You - Will You Travel Down This Road with Me (& Isla Grant) - The Wedding Song
Johnny O'Keefe
Songs:
She's My Baby
The Oak Ridge Boys
Songs:
Sail Away - Elvira - Come On In - Trying to Love Two Women - American Made
Paul Oakenfold
Songs:
Rubberneckin' Remix (& Elvis Presley) - Starry Eyed Surprise (feat. Shifty Sherlock)

Oasis
Noel Gallagher & Liam Gallagher
See also: Beady Eye
Songs: Don't Look Back in Anger - Wonderwall - Stop Crying Your Heart Out - Morning Glory - Supersonic
Noel Gallagher & Liam Gallagher
See also: Beady Eye
Songs: Don't Look Back in Anger - Wonderwall - Stop Crying Your Heart Out - Morning Glory - Supersonic
Agnes Obel
Songs:
Riverside
Pascal Obispo
Songs:
Mourir demain (live) - Tombé pour elle (l'île aux oiseaux) - Ma génération - Pour les gens du secours - Nouveau voyage (C'est la vie) (feat. Baby Bash)

Aitana Ocaña
Songs: Lo malo (& Ana Guerra) - Teléfono - Mon amour (remix) (& Zzoilo) - Formentera (& Nicki Nicole)
Songs: Lo malo (& Ana Guerra) - Teléfono - Mon amour (remix) (& Zzoilo) - Formentera (& Nicki Nicole)
Ric Ocasek
Songs:
Emotion in Motion
Ocean
Songs:
Put Your Hand In The Hand

Frank Ocean
Songs: Novacane - Thinkin Bout You - Lost - Forrest Gump - Slide (feat. Calvin Harris & Migos)
Songs: Novacane - Thinkin Bout You - Lost - Forrest Gump - Slide (feat. Calvin Harris & Migos)

Tom Odell
Songs: Another Love - Long Way Down - Heal - Real Love - Half as Good as You (feat. Alice Merton)
Songs: Another Love - Long Way Down - Heal - Real Love - Half as Good as You (feat. Alice Merton)
Johannes Oerding
Songs:
Für immer ab jetzt - Wenn du lebst - Die guten Zeiten (& Wincent Weiss) - Engel - An guten Tagen
Ofenbach (DJs)
Songs:
Shivers (& Ed Sheeran) - Katchi (feat. Nick Waterhouse) - Wasted Love (feat. Lagique) - Head Shoulders Knees & Toes (& Quarterhead (feat. Norma Jean Martine)) - Hurricane (& Ella Henderson)
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! (musical)
The musical (1943)
See also:Oklahoma! (film)
Songs: The Surrey with the Fringe on Top - Oh What a Beautiful Morning - I Cain't Say No - All Er Nothin' (Celeste Holm & Lee Dixon) - People Will Say We're in Love
The musical (1943)
See also:Oklahoma! (film)
Songs: The Surrey with the Fringe on Top - Oh What a Beautiful Morning - I Cain't Say No - All Er Nothin' (Celeste Holm & Lee Dixon) - People Will Say We're in Love
Ol' 55
Songs:
Looking for an Echo
Mike Oldfield
Songs:
Moonlight Shadow (feat. Maggie Reilly) - Sailing (feat. Luke Spiller) - To France (feat. Maggie Reilly) - Shadow on the Wall (feat. Roger Chapman)

Oliver! (musical)
Musicals & Broadway 1960
Songs: Consider Yourself - Where Is Love? - As Long As He Needs Me - Oom Pah Pah - Reviewing the Situation
Musicals & Broadway 1960
Songs: Consider Yourself - Where Is Love? - As Long As He Needs Me - Oom Pah Pah - Reviewing the Situation

Olly Murs
Oliver "Olly" Stanley Murs
Songs: Dance With Me Tonight - Dear Darlin' - I Wan'na Be Like You (& Robbie Williams) - Heart Skips A Beat (feat. Rizzle Kicks) - Army of Two
Oliver "Olly" Stanley Murs
Songs: Dance With Me Tonight - Dear Darlin' - I Wan'na Be Like You (& Robbie Williams) - Heart Skips A Beat (feat. Rizzle Kicks) - Army of Two
Olympe
Songs:
Frozen (The Voice 2) - Je veux savoir (We Love Disney 2) - Zombie - La quête - Non, je ne regrette rien
OMC
Songs:
How Bizarre
OMI
Songs:
Cheerleader (Felix Jaehn Remix) - Cheerleader - Jambo (& Giusy Ferreri feat. Takagi & Ketra) - Hula Hoop

OneRepublic
Songs: Counting Stars - I Ain't Worried (Top Gun: Maverick) - I Lived - Love Runs Out - Apologize (& Timbaland)
Songs: Counting Stars - I Ain't Worried (Top Gun: Maverick) - I Lived - Love Runs Out - Apologize (& Timbaland)
Oliver Onions
Songs:
Dune Buggy (Altrimenti ci arrabbiamo)
Opus
Songs:
Live Is Life

Rita Ora
Songs: Black Widow (& Iggy Azalea) - Let You Love Me - R.I.P. (feat. Tinie Tempah) - Your Song - Ritual (& Tiësto & Jonas Blue)
Songs: Black Widow (& Iggy Azalea) - Let You Love Me - R.I.P. (feat. Tinie Tempah) - Your Song - Ritual (& Tiësto & Jonas Blue)
Oran Juice Jones
Songs:
The Rain

Roy Orbison
See also: Traveling Wilburys
Songs: Oh, Pretty Woman - Dream Baby (How Long Must I Dream) - California Blue (with the Royal Philharmonic Orchestra) - Only the Lonely (Know the Way I Feel) - You Got It
See also: Traveling Wilburys
Songs: Oh, Pretty Woman - Dream Baby (How Long Must I Dream) - California Blue (with the Royal Philharmonic Orchestra) - Only the Lonely (Know the Way I Feel) - You Got It
Orchestral Manoeuvres in the Dark
Songs:
Enola Gay - If You Leave (Pretty in Pink) - Sailing on the Seven Seas - Maid of Orleans (The Waltz Joan Of Arc)
Orelsan
Songs:
La quête - Basique - La Terre est ronde - La pluie (feat. Stromae) - Défaite de famille
Orianthi
Songs:
According To You
Benjamin Orr
Songs:
Stay the Night
Osborne Brothers
Songs:
Rocky Top

Jeffrey Osborne
See also: L.T.D.
Songs: On the Wings of Love - You Should Be Mine (The Woo Woo Song) - Stay With Me Tonight - Love Power (& Dionne Warwick)
See also: L.T.D.
Songs: On the Wings of Love - You Should Be Mine (The Woo Woo Song) - Stay With Me Tonight - Love Power (& Dionne Warwick)

Kelly Osbourne
See also: Ozzy Osbourne
Songs: Changes (feat. Ozzy Osbourne) - Papa Don't Preach - One Word
See also: Ozzy Osbourne
Songs: Changes (feat. Ozzy Osbourne) - Papa Don't Preach - One Word

Ozzy Osbourne
See also: Black Sabbath & Kelly Osbourne
Songs: Mr. Tinkertrain - Killer of Giants - Road to Nowhere - Hellraiser - Crazy Train
See also: Black Sabbath & Kelly Osbourne
Songs: Mr. Tinkertrain - Killer of Giants - Road to Nowhere - Hellraiser - Crazy Train
Osibisa
Songs:
Sunshine Day

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

Ottawan
Songs: Hands Up (Give Me Your Heart) - D.I.S.C.O (English version) - D.I.S.C.O (short version) - T'es OK - D.I.S.C.O (version française)
Songs: Hands Up (Give Me Your Heart) - D.I.S.C.O (English version) - D.I.S.C.O (short version) - T'es OK - D.I.S.C.O (version française)
Maaike Ouboter
Songs:
Dat ik je mis

OutKast
Songs: B.O.B. (Bombs Over Baghdad) - So Fresh, So Clean - Int'l Players Anthem (I Choose You) (feat. UGK) - Hey Ya! (Radio Mix - Club Mix) - Roses (feat. Big Boi)
Songs: B.O.B. (Bombs Over Baghdad) - So Fresh, So Clean - Int'l Players Anthem (I Choose You) (feat. UGK) - Hey Ya! (Radio Mix - Club Mix) - Roses (feat. Big Boi)
Outlandish
Songs:
Aïcha
Outlaws
Songs:
Ghost Riders in the Sky - Green Grass and High Tides (Short version) - There Goes Another Love Song
Over the Moon
Songs:
Ultraluminary (Phillipa Soo) - Rocket to the Moon - Rocket to the Moon (Reprise)
Chord Overstreet
Songs:
Hold On
Jason Owen
Songs:
The Power of Love

Buck Owens
Buck Owens & His Buckaroos
Songs: Pfft You Were Gone (Hee Haw Theme) - I've Got A Tiger By The Tail - Close Up The Honky Tonks - I Don't Care (Just As Long As You Love Me) - Streets of Bakersfield (& Dwight Yoakam)
Buck Owens & His Buckaroos
Songs: Pfft You Were Gone (Hee Haw Theme) - I've Got A Tiger By The Tail - Close Up The Honky Tonks - I Don't Care (Just As Long As You Love Me) - Streets of Bakersfield (& Dwight Yoakam)

Owl City
Adam Young
Songs: Fireflies - Good Time (& Carly Rae Jepsen) - Shine Your Way (feat. Young & Yuna) - When Can I See You Again - Vanilla Twilight
Adam Young
Songs: Fireflies - Good Time (& Carly Rae Jepsen) - Shine Your Way (feat. Young & Yuna) - When Can I See You Again - Vanilla Twilight

Ozuna
Songs: El Farsante (Remix) (& Romeo Santos) - Baila Baila Baila - Criminal (& Natti Natasha) - Escápate conmigo (feat. Wisin) - Taki Taki (& DJ Snake, Selena Gomez & Cardi B)
Songs: El Farsante (Remix) (& Romeo Santos) - Baila Baila Baila - Criminal (& Natti Natasha) - Escápate conmigo (feat. Wisin) - Taki Taki (& DJ Snake, Selena Gomez & Cardi B)