K
- K1X & iyo
- KALMA
- KAORI FUJII, flute
- KAORI KOBAYASHI
- KAORI MURAJI, guitar
- KASHIWA
- KASHMERE
- KATSUTOSHI MORIZONO
- KATSUYA WATANABE, oboe
- Kazuko Yasukawa
- KAZUMASA MATSUMOTO, piano
- KAZUO TAKEDA
- KEISUKE TERAJIMA
- KEN MORIMURA
- KENJI OHMURA
- KEYTALK
- KIYOTSUGU AMANO
- KODAI SATO
- KONISHIKI
- KONTA
- Kyoko Ito, Soprano
- Kaco
- Kairiki bear
- Kanako Takatsuki
- Kanano Senritsu
- Kanaria
- Kaneyorimasaru
- Kaori@livedoor PHOENIX
- Karen
- Kassin
- Kaya
- Kazuma Nozawa
- Kazuo Umezu
- Keiko Masuda
- Keisuke Kuwata feat. Motoharu Sano, Masanori Sera, Char, Goro Noguchi
- Ken Shima
- Kenji Omura,Kazumi Watanabe,Katsutoshi Morizono & Junshi Yamagishi
- Keta to kurokawa
- Kiyoko Otani
- Kiyozo Shimbashi
- Kohmi Hirose x Night Tempo
- Kotone
- Kuwata Keisuke&Matsutoya Yumi
- katamaRICO