Aitana Ocaña
Songs: Lo malo (& Ana Guerra) - Teléfono - Mon amour (remix) (& Zzoilo) - Formentera (& Nicki Nicole)
Leslie Odom Jr. Songs: Shape of My Heart (& Josh Groban) - Speak Now (One Night in Miami...)
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)
Old Songs: Remain (Saleka Shyamalan)
Mike Oldfield Songs: Moonlight Shadow (feat. Maggie Reilly) - Sailing (feat. Luke Spiller) - To France (feat. Maggie Reilly) - Shadow on the Wall (feat. Roger Chapman)
OMC Songs: How Bizarre
Oliver Onions Songs: Dune Buggy (Altrimenti ci arrabbiamo)
Otis Day And The Knights
Musical film National Lampoon's Animal House
Songs: Shama Lama Ding Dong - Shout
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)