Masafumi Gotoh (後藤 正文, Gotō Masafumi) or Gotch (December 2, 1976) is a Japanese singer-songwriter and musician, best known as the lead vocalist, guitarist, and primary songwriter for the rock band Asian Kung-Fu Generation. Masafumi met fellow band members Kensuke Kita and Takahiro Yamada while attending a music club of Kanto Gakuin University. The three formed Asian Kung-Fu Generation in 1996, with drummer Kiyoshi Ijichi joining the band shortly after.
