O Brother, Where Art Thou?
Music from the Motion Picture (2000)
Songs: I Am a Man of Constant Sorrow - In The Jailhouse Now
TJ O'Neill Songs: A Pirate Looks at 40 (& Stick Figure, KBong & Johnny Cosmic)
O.A.R.
Also known as "Of a Revolution"
Songs: That Was a Crazy Game of Poker - Peace - Shattered (Turn The Car Around)
Max Oazo
Songs: Flowers (remix) (& Miley Cyrus & Bonzana)
Frank Ocean
Songs: Slide (& Calvin Harris & Migos) - Super Rich Kids (& Earl Sweatshirt) - Pink Matter (& André 3000) - Thinkin Bout You - Nights
Odetari Songs: Keep Up
Leslie Odom Jr. Songs: Shape of My Heart (& Josh Groban) - Speak Now (One Night in Miami...)
Ofenbach (DJs)
Songs: Overdrive (& Norma Jean Martine) - Katchi (& Nick Waterhouse) - Be Mine - Shivers (& Ed Sheeran) - Head Shoulders Knees & Toes (& Quarterhead & Norma Jean Martine)
Oklahoma! (film) Songs: Oklahoma (Gordon MacRae, Charlotte Greenwood, James Whitmore, Shirley Jones & Jay C. Flippen)
Oldelaf Songs: Et si on chantait (& Monsieur D.) - La tristitude - Le café (& Monsieur D.) - C'est Michel
Mike Oldfield
See also: Sally Oldfield
Songs: Moonlight Shadow (& Maggie Reilly) - Nuclear (feat. Luke Spiller) - To France (& Maggie Reilly) - Sailing (& Luke Spiller) - Shadow on the Wall (& Roger Chapman)
Olympe Songs: Désenchantée - Si maman si - Hakuna Matata (We Love Disney) - La quête - Je veux savoir (We Love Disney)
OMC Songs: How Bizarre
Once Upon a Time in the West
Music from the Motion Picture (1968) Ennio Morricone
Songs: Finale (Ennio Morricone)
Onyx Songs: Slam
Otis Day and the Knights
Musical film National Lampoon's Animal House
Songs: Shout - Shama Lama Ding Dong
The Outsiders (musical) Songs: Stay Gold (Sky Lakota-Lynch & Brody Grant)
OV7 Songs: Shabadaba - Enloquéceme (Lidia Ávila, Kalimba Marichal & Oscar Schwebel) - Te quiero tanto, tanto
Buck Owens
Buck Owens & His Buckaroos
Songs: Crying Time (& His Buckaroos) - Pfft You Were Gone (Hee Haw Theme) - Together Again - Streets of Bakersfield (& Dwight Yoakam) - Love's Gonna Live Here