The group is made up of six young Japanese men. Their debut was announced January 29, 2006. The debut was accompanied by a concert tour of Japan. They released a single ("Real Face"), an album ("Best of KAT-TUN"), and a DVD (Real Face Film) on the same day, March 22, 2006.
KAT-TUN is made up of six members:
- Kamenashi Kazuya (born February 23, 1986)
- Akanishi Jin (born July 4, 1984)
- Taguchi Junnosuke (born November 29, 1985)
- Tanaka Koki (born November 5, 1985)
- Ueda Tatsuya (born October 4, 1983)
- Nakamaru Yuichi (born September 4, 1983).
KAT-TUN not only sings and dances. KAT-TUN also acts.
- KAT-TUN is an acronym. The group's name is an acronym formed by the members' surname initials. KAT-TUN stands for Kamenashi Kazuya, Akanishi Jin, Taguchi Junnosuke, Tanaka Koki, Ueda Tatsuya, Nakamaru Yuichi.