J-POP Artists, Casts, Authors
- OZ
- OZ RAM INDIO
- OZAKI KOICHI
- OZALLY
- OZIGIRI
- Ozone Door
- OZONEDOOR
- OZONETRANCE
- OZROSAURUS
- OZWORLD
- O'CHAWANZ
- O'phan
- O`tiempoman
- O`VALENCIA!
- RYO OKUMOTO
- SATORU ONO
- OE
- the audio pool
- THE AUTOCRATICS
- The Autumn
- The Old & Moderns
- THE OLIVE
- THE OPENING CLOUD
- THE ORAL CIGARETTES
- THE ORANGE PRESIDENT
- The Order Made
- THE OSAKA BULL(s)
- the oto factory
- THE OTOGIBANASHI`S
- The OXs
- the OKUBA's
- TSURU ONISHI
- xxx of WONDER(NANBA SHIHO * Dr.Usui * frenesi * KISHIDA MEL * Julie Watai)
- [OTOIRO TEGAMI]SEISAKU JIKKOU IINKAI
- OI.SOKO NO MICHI AKERO
- OISHIIHANASHI
- Oisicle Melonpan
- OIMO
- Daisuke Oi
- Oi Daisuke
- OHKUBO KEI
- OSAKI KAREN
- OTA EMIRI
- Shizuru Otaka
- OHTAKA SIZZLE
- OHTAKA SIZZLE with KOMACCHA KUREZUMA
- OTA HIROSHI
- OTOMO YU
- OTORI MAI
- ONO MIKIYA/ONO MARIKO
- Yuichi Ohata
- Yuichi Ohata
- OAME
- OKA ARINA
- OKAERI HEROZ
- Okagesama Brothers
- おかたまご合唱団
- おかのあや
- OKAPIE
- おかみどり
- OKAMOTO EMI
- Daisuke Okamoto
- OKAYU
- Okawari Sisters
- OKAN
- Okan
- OGASAWARA AI
- OGATA RYOJI & FRIENDS
- おくだみき
- Manami Ogu
- OGUMA YUKI
- Okeisan to Natsumi Abe (Morning Musume)
- Kikuko Inoue, Junko Iwao
- Oshare TV
- OSYARE MACHIGAI
- ODA TAKASHI/HIRAYAMA SHU
- ODAYA KANAKO
- OP SAMBA
- OTETSU
- OTO
- Otogibanashi
- otogibanashi
- OTONARI NI GINGA KEIKAKU
- OTOBOKE de Brothers
- OTOBOKE BEAVER
- Odoru 11
- ODOROKI.TODOROKI.ROPPONGI!!
- Onigiri nigiri tai
- ONIGOKKO
- ONOSIU
- おののこみち
- おのまきこ
- OHA-Gumi
- OHAYOU!MOKYURESHON
- OHAYOU GOZAIMASU
- Ohayou Twintail
- OHARA RYOICHI
- OHA GIRL from Girls2
- OHA-GIRL CHU!CHU!CHU!
- OHA-GIRL FUWAWA