- 1 Owls
- 2 OZMA
- 3 Odesza
- 4 Old Dominion
- 5 Orchestre Philharmonique de Radio France
- 6 Orchestral Manoeuvres in the Dark
- 7 Outloud
- 8 ODEN
- 9 One Nation
- 10 Origen
- 11 Oh Wonder
- 12 Os Quatro e Meia
- 13 OBB
- 14 Ours
- 15 Oscar Peterson Trio
- 16 Opia
- 17 Oesch's die Dritten
- 18 On Fire
- 19 OneRepublic
- 20 Oliver Shanti & Friends
- 21 oneBYone
- 22 Otto Le Blanc
- 23 Orchester der Deutschen Oper Berlin
- 24 Our Last Night
- 25 OK Go
- 26 Old Crow Medicine Show
- 27 Oneira
- 28 Outlawz
- 29 Orbital
- 30 Order Of The Ebon Hand