Artistes: O
- O-Bee
- O' Brother
- The O.C. Best Music
- O-Town
- O-Zone
- Oasis
- Obie Trice
- Obituary
- Ocean Drive
- Oceana
- Oceans Ate Alaska
- Oceanship
- Océéane
- Odelaf
- Odette Laure
- Ödland
- Of Mice & Men
- Of Monsters And Men
- Offenbach
- The Offspring
- Les Ogres De Barback
- Oh La La !
- Oh Land
- Oh Sleeper
- Ojamajo DoReMi
- Ok Go
- Okoumé
- Ol'Kainry
- OLDCODEX
- Oldelaf
- Oldelaf & Monsieur D
- Olive Et Moi
- Oliver Boyd And The Remembralls
- Olivia Holt
- Olivia Inspi Reira
- Olivia Lufkin
- Olivia Mitchell
- Olivia Newton-John
- Olivia Ruiz
- Olivier Miller
- Olly Murs
- Olympe
- Omar Chakil
- Omarion
- Omega
- OMG Girlz
- Omnia
- Omnikrom
- One Chance
- One Direction
- One Less Reason
- One Night Only
- One Ok Rock
- One Piece
- One Republic
- One-T
- One Voice
- Onirik
- Oomph!
- L'Opéra De Quat'sous
- Opera Multi Steel
- Opérettes
- Opeth
- Ophélie Winter
- Orange Caramel
- Orange Juice
- Orange Range
- Ore Ska Band
- La Oreja De Van Gogh
- Orelsan
- Oreslan
- The Organ
- Orgy
- Orianthi
- Orishas
- ORLONDO Bongou
- Ornella Vanoni
- Orphaned Land
- Orson
- Oshen
- Otep
- Otis Redding
- Ouarda
- Our Lady Peace
- Our Last Night
- Ouran High School Host Club Soundtrack
- Ours
- Outkast
- Outlandish
- Over Kill
- Overdream
- Overkill
- Overtake
- Owl City
- Oxmo Puccino
- -OZ-
- Ozzy Osbourne
