Ö La Palöma Boys
Songs:
Ö La Palöma
Hazel O'Connor
Songs:
Will You
Anita O'Day
Songs:
Peanut Vendor
Colby O'Donis
Songs:
Just Dance (& Lady Gaga) - Beautiful (& Akon & Kardinal Offishall) - What You Got (feat. Akon)
Rosie O'Donnell
Songs:
White Christmas (& Elton John) - Christmas (Baby, Please Come Home) (& Cher)

Daniel O'Donnell
Songs: Danny Boy - Walk of Life (The Late Late Country Special) - Perfect - The Isle of Innisfree - My Shoes Keep Walking Back to You
Songs: Danny Boy - Walk of Life (The Late Late Country Special) - Perfect - The Isle of Innisfree - My Shoes Keep Walking Back to You
O'G3NE
Songs:
Lights and Shadows - Change Will Come (The Voice Of Holland live) - Magic - Het is over
The Oak Ridge Boys
Songs:
American Made - Elvira - Come On In - Sail Away - Trying To Love Two Women

Oasis
Noel Gallagher & Liam Gallagher
See also: Beady Eye
Songs: Don't Look Back In Anger - Stand by Me - Wonderwall - She's Electric - Half the World Away
Noel Gallagher & Liam Gallagher
See also: Beady Eye
Songs: Don't Look Back In Anger - Stand by Me - Wonderwall - She's Electric - Half the World Away
Agnes Obel
Songs:
Riverside
Frank Ocean
Songs:
Novacane - Slide (feat. Calvin Harris & Migos) - Sweet Life - Thinkin Bout You - Super Rich Kids (feat. Earl Sweatshirt)
Tom Odell
Songs:
Another Love - Heal - Half as Good as You (feat. Alice Merton) - Real Love - Long Way Down
Esther Ofarim
Songs:
Morning Of My Life (& Abi Ofarim)
Ofenbach
Songs:
Feeling Good (feat. Alexandre Joseph) - Paradise (feat. Benjamin Ingrosso) - Rock It - Head Shoulders Knees & Toes (& Quarterhead (feat. Norma Jean Martine)) - Be Mine
Ohio Express
Songs:
Yummy Yummy Yummy

Oklahoma! (musical)
The musical (1943)
See also:Oklahoma! (film)
Songs: Oh What A Beautiful Morning - I Cain't Say No - People Will Say We're in Love - The Farmer and the Cowman - Out of my Dreams
The musical (1943)
See also:Oklahoma! (film)
Songs: Oh What A Beautiful Morning - I Cain't Say No - People Will Say We're in Love - The Farmer and the Cowman - Out of my Dreams
Ol' 55
Songs:
Looking for an Echo

Mike Oldfield
See also: Sally Oldfield
Songs: Moonlight Shadow (& Maggie Reilly) - Sailing - To France (feat. Maggie Reilly) - Tubular Bells - Shadow On The Wall (Roger Chapman)
See also: Sally Oldfield
Songs: Moonlight Shadow (& Maggie Reilly) - Sailing - To France (feat. Maggie Reilly) - Tubular Bells - Shadow On The Wall (Roger Chapman)
Oliver
Songs:
Good Morning, Starshine

Oliver! (musical)
Musicals & Broadway 1960
Songs: As Long As He Needs Me - Oom Pah Pah - Consider Yourself - Food, Glorious Food - You've Got to Pick a Pocket or Two
Musicals & Broadway 1960
Songs: As Long As He Needs Me - Oom Pah Pah - Consider Yourself - Food, Glorious Food - You've Got to Pick a Pocket or Two

Olly Murs
Oliver "Olly" Stanley Murs
Songs: Moves (feat. Snoop Dogg) - Dance With Me Tonight - Up (& Demi Lovato) - Troublemaker (feat. Flo Rida) - I Wan'na Be Like You (& Robbie Williams)
Oliver "Olly" Stanley Murs
Songs: Moves (feat. Snoop Dogg) - Dance With Me Tonight - Up (& Demi Lovato) - Troublemaker (feat. Flo Rida) - I Wan'na Be Like You (& Robbie Williams)
Olympe
Songs:
Hometown Glory - Je veux savoir (We Love Disney 2) - C'est facile - Zombie - Frozen (The Voice 2)
Olympic Games
Songs:
Rise (Katy Perry) - The Flame (Tina Arena) - Survival (Muse) - I Believe (Nikki Yanofsky - Vancouver 2010) - J'imagine (Annie Villeneuve)
Don Omar
Songs:
Danza kuduro (feat. Lucenzo) - Ella y Yo (& Aventura) - Taboo - Sudando - Dale don dale (feat. Glory)
OMC
Songs:
How Bizarre

OMI
Songs: Cheerleader (Felix Jaehn Remix) - Cheerleader - Jambo (& Giusy Ferreri feat. Takagi & Ketra) - Hula Hoop
Songs: Cheerleader (Felix Jaehn Remix) - Cheerleader - Jambo (& Giusy Ferreri feat. Takagi & Ketra) - Hula Hoop
On a tous quelque chose de Johnny
Songs:
L'envie (Kendji Girac) - Les coups (FFF) - Je te promets (Gaëtan Roussel) - Que je t'aime (Amel Bent) - Le penitencier (Gauvain Sers)

Once Upon a Time in the West
Music from the Motion Picture (1968) Ennio Morricone
Songs: Finale (Ennio Morricone) - Man with a Harmonica (Ennio Morricone)
Music from the Motion Picture (1968) Ennio Morricone
Songs: Finale (Ennio Morricone) - Man with a Harmonica (Ennio Morricone)
One Night Only
Songs:
Just For Tonight - It's About Time - Say You Don't Want It (feat. Emma Watson)

One Tree Hill
From the TV series One Tree Hill (2003 - 2012)
Songs: Everybody's Changing (Keane) - I Don't Want To Be (Gavin DeGraw) - Halo (Bethany Joy Lenz) - Naive (The Kooks) - I Don't Care (Fall Out Boy)
From the TV series One Tree Hill (2003 - 2012)
Songs: Everybody's Changing (Keane) - I Don't Want To Be (Gavin DeGraw) - Halo (Bethany Joy Lenz) - Naive (The Kooks) - I Don't Care (Fall Out Boy)
Olivia Ong
Songs:
L-O-V-E
Oomph!
Songs:
Augen Auf!
Trijntje Oosterhuis
Songs:
For Once in My Life (live) - Kleine Jongen (live) - Face In The Crowd (& Lionel Richie) - Ken je mij - De zee
Rita Ora
Songs:
Let You Love Me - Anywhere - Your Song - Ritual (& Tiësto & Jonas Blue) - For You (& Liam Payne)

Orchestral Manoeuvres in the Dark
OMD
Songs: Sailing on the Seven Seas - Enola Gay - Maid of Orleans (The Waltz Joan Of Arc) - If You Leave (Pretty in Pink)
OMD
Songs: Sailing on the Seven Seas - Enola Gay - Maid of Orleans (The Waltz Joan Of Arc) - If You Leave (Pretty in Pink)
Orelsan
Songs:
Basique - La pluie (feat. Stromae) - À l'heure où je me couche (& Gringe (Casseurs Flowters)) - Tout va bien - Dis-moi
Osborne Brothers
Songs:
Rocky Top

Ozzy Osbourne
See also: Black Sabbath & Kelly Osbourne
Songs: Mississippi Queen - Crazy Train - Shot In The Dark - Bark at the Moon - Flying High Again
See also: Black Sabbath & Kelly Osbourne
Songs: Mississippi Queen - Crazy Train - Shot In The Dark - Bark at the Moon - Flying High Again
K.T. Oslin
Songs:
Miss The Mississippi And You - Do Ya' - Come Next Monday - 80's Ladies - Hey Bobby

Donny Osmond
See also: The Osmonds, Marie Osmond & Jimmy Osmond
Songs: This Is the Moment - Puppy Love - I'll Make a Man Out of You (Mulan) - Young Love - A Little Bit Country, A Little Bit Rock 'N Roll (& Marie Osmond)
See also: The Osmonds, Marie Osmond & Jimmy Osmond
Songs: This Is the Moment - Puppy Love - I'll Make a Man Out of You (Mulan) - Young Love - A Little Bit Country, A Little Bit Rock 'N Roll (& Marie Osmond)

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 - Megamix
Songs: Hands Up (Give Me Your Heart) - D.I.S.C.O (English version) - D.I.S.C.O (short version) - T'es OK - Megamix
Otto Knows
Songs:
Million Voices

OutKast
Songs: Hey Ya! (Radio Mix - Club Mix) - Ms. Jackson - Roses (feat. Big Boi) - Int'l Players Anthem (I Choose You) (feat. UGK) - The Way You Move (feat. Sleepy Brown)
Songs: Hey Ya! (Radio Mix - Club Mix) - Ms. Jackson - Roses (feat. Big Boi) - Int'l Players Anthem (I Choose You) (feat. UGK) - The Way You Move (feat. Sleepy Brown)
Outlandish
Songs:
Aïcha
Outwork
Songs:
Elektro (Dance Remix)
Over the Moon
Songs:
Ultraluminary (Phillipa Soo) - Rocket to the Moon - Rocket to the Moon (Reprise)
Chord Overstreet
Songs:
Hold On

Buck Owens
Buck Owens & His Buckaroos
Songs: Santa Looked a Lot Like Daddy - Together Again - Close Up The Honky Tonks - Act Naturally - Streets of Bakersfield (& Dwight Yoakam)
Buck Owens & His Buckaroos
Songs: Santa Looked a Lot Like Daddy - Together Again - Close Up The Honky Tonks - Act Naturally - Streets of Bakersfield (& Dwight Yoakam)

Owl City
Adam Young
Songs: Fireflies - Good Time (& Carly Rae Jepsen) - When Can I See You Again - Vanilla Twilight - Deer In The Headlights
Adam Young
Songs: Fireflies - Good Time (& Carly Rae Jepsen) - When Can I See You Again - Vanilla Twilight - Deer In The Headlights
Ozuna
Songs:
Taki Taki (& DJ Snake, Selena Gomez & Cardi B) - Mamacita (& Black Eyed Peas & J Rey Soul) - El Farsante (Remix) (& Romeo Santos) - Criminal (& Natti Natasha) - Baila Baila Baila