Total number of artists: 877
Alphabetical Search- Inori Minase (4)
- Inoue Joe (2)
- Inoue Takehide (1)
- Iori (1)
- Isao Sasaki (3)
- Isao Sasaki and the Suginami Children's Choir (1)
- Isao Taira (1)
- Iyami (1)
- i☆Ris (2)
- JAM Project (2)
- JAM Project featuring Ichiro Mizuki (1)
- Janne Da Arc (2)
- Janne da Arc (1)
- Jibaku Shounen Band (1)
- Jin ft. MARiA from GARNiDELiA (1)
- Jin Hashimoto (1)
- Jindou (1)
- Jinn (1)
- jo0ji (1)
- Joe Hisaishi (3)
- JO☆STARS～TOMMY, Coda, JIN～ (1)
- JUDY AND MARY (1)
- Jun Hiroe (2)
- June Amou (Rumi Shishido) (1)
- Junjou no Afilia (1)
- JUNNA (1)
- Jyukai (1)
- Kae Hanazawa (1)
- Kahoru Kohiruimaki (1)
- Kaitani Naomi (1)
- Kalafina (8)
- Kana Asumi, Kaori Mizuhashi, Ryoko Shintani & Yuko Goto (2)
- Kana Hanazawa (1)
- Kana Nishino (1)
- KANA-BOON (8)
- KANA-BOON feat. Yuuho Kitazawa (1)
- Kanae Itou, Yuka Iguchi, Ayana Taketatsu (1)
- Kanako Itou (1)
- Kanako Wada (1)
- Kanaria (1)
- Kankaku Piero (1)
- Kano (1)
- KAORI (1)
- Karen Aoki, Daisuke Hasegawa (1)
- Karen Araragi (Eri Kitamura) (1)
- Karen Kohiruimaki (1)
- Katsuo Ohno (1)
- Kazuya Yoshii (1)
- Kazuyoshi Saitou (1)
- Keiko Utoko (1)