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