- 1 ONE OK ROCK
- 2 OH MY GIRL
- 3 Official髭男dism
- 4 ONEUS
- 5 Orange Caramel
- 6 OMEGA X
- 7 ONEWE
- 8 Orange Range
- 9 OnlyOneOf
- 10 Omoinotake
- 11 ONE OR EIGHT
- 12 ONE N' ONLY
- 13 OOM
- 14 ONE PACT
- 15 ORESAMA
- 16 OxT
- 17 OH MY GIRL BANHANA
- 18 ONF
- 19 OLDCODEX
- 20 ONE☆DRAFT
- 21 OKAMOTO'S
- 22 Obroject
- 23 OCTPATH
- 24 Oreskaband
- 25 onelifecrew
- 26 Only this time
- 27 ON/OFF
- 28 Orange Pekoe
- 29 OFFROAD
- 30 ODD EYE