- 1 One Heart
- 2 Omnium Gatherum
- 3 Oceanlab
- 4 One-Two
- 5 Oxymorrons
- 6 Our Last Night
- 7 Orbital
- 8 Oasis
- 9 Out Of Tune
- 10 One Nation
- 11 Os Paralamas Do Sucesso
- 12 Other Lives
- 13 Oblomov
- 14 OZMA
- 15 Omar El Gamal
- 16 Oro Solido
- 17 oneBYone
- 18 Onda Vaga
- 19 Otto Le Blanc
- 20 Old Dominion
- 21 OPB
- 22 Owls
- 23 Orchester der Deutschen Oper Berlin
- 24 Okkervil River
- 25 Ocean Alley
- 26 Oh Wonder
- 27 OSLO
- 28 OBB
- 29 Origen
- 30 O.A.R.