Groups
- okujo kantorera 2
- okujou no chikashitsu 3
- okujou no hosomichi 2
- okura 2
- okura teishoku 4
- okurapuchi 1
- okuribidokei 3
- okusei 1
- okushima izumo 32
- okutama mikan 4
- ol 7
- old c 2
- old school academy 171
- old weapon 40
- oldman 2
- oldwiseman 28
- ole 5
- ole-m 29
- olf-koubou 4
- olmeca head 4
- oltos 6
- olympia 1
- olympus 2
- om 6
- omae pant hakanai 2
- omae wa sukkondero 2
- omaera no ai de jisuu seigen koeta 3
- omamagoto 9
- omamagoto no owari. 1
- omame 2
- omame cyokueitenn 8
- omaru bokujou 5
- omaru-kei 1
- omarunyanko 1
- omatsuri dragon 2
- omatsuri kibun 12
- omchicken 2
- omee wa shaberi sugida 27
- omega 3
- omega 2-d 45
- omega circuit 5
- omega house 1
- omega sol 3
- omega star 60
- omega13 2
- omegavision 1
- omeme soda 2
- omi 2
- omikidokkuri 1
- omiotsuke 16