| background vocals | Al『Love Again』(2001.11.21 WPC6-10179) |
| Theme of KinKi Kids '00 | Cho | Al『KinKi Single Selection』(2000.05.17 JECN-0010) |
| - so young blues - | Backing Vocals | Al『E album』(2001.07.25 JECN-0020) |
| ギラ☆ギラ | Chorus | Al『KinKi Single Selection II』(2004.12.22 JECN-0057) |
| Good day Sunshine | Chorus | Al『Princess Moon』(1994.09.21 MRCA-10018) |
| Daybreak Lullaby | Chorus | Al『Princess Moon』(1994.09.21 MRCA-10018) |
| Background Vocals | Al『EXPANSION』(2000.08.23 HDCA-10046) |