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 now made up of three members:
- Nakamaru Yuichi born September 4, 1983
- Kamenashi Kazuya born February 23, 1986
- Ueda Tatsuya born October 4, 1983
Members who left the group:
- Taguchi Junnosuke born November 29, 1985
- Tanaka Koki born November 5, 1985
- Akanishi Jin born July 4, 1984
KAT-TUN not only sings and dances. KAT-TUN also acts.
- for KAT - TUN released in Cartoon KAT - TUN II You album 2007 Fight All Night for KAT - TUN for DreamBoy musical in 2004 released in Cartoon KAT - TUN II
- Arashi 1999 Tackey and Tsubasa 2001 NewS 2003 Kanjani 2005 KAT - TUN 2006 and Hey Say JUMP 2007 Johnny & Associates has been introducing
- of Arashi, Yamashita Tomohisa of NEWS, Tanaka Koki and Akanishi Jin of KAT - TUN Ryo, Satoshi, Ni and ShuU Girugamesh, Tsugunaga Momoko of Berryz Kobo
- and Mary Jun Shibata Jun Togawa Kaela Kimura Kagrra, KAN Kana Kanjani KAT - TUN Ken Hirai Kei Ogura KEIKO Kick the Can Crew Kids Alive Kimeru Kinki Kids