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Biography
Origin:
Tokyo, Japan
Decades:
2001-present

KAT-TUN (カトゥーン, Katūn?) is a Japanese boy band formed by Johnny & Associates (Johnny's) in 2001. The group's name is an acronym that was exclusively based on the first letter of each member's family name until the departure of Jin Akanishi in 2010. As of 2010, KAT-TUN stands for Kazuya KAmenashi, Junnosuke Taguchi, Koki Tanaka, Tatsuya Ueda and Yuichi Nakamaru. Their debut on March 22, 2006 was marked by a tripartite release of a CD single, album and music DVD on their exclusive record label J-One Records. Since then, all of their single, album and music DVD releases have debuted at number one on the Oricon music and DVD charts. Before becoming KAT-TUN, each member belonged to different trainee units within Johnny & Associates. In 2001, eight members were chosen to become a temporary dancing unit in order to support Koichi Domoto in the NHK music program, Pop Jam. The eight members were switched around before it officially became KAT-TUN, with the current five members plus Jin Akanishi. Although the formation was only meant to be a temporary support unit, KAT-TUN gained a great deal of attention and became a solid unit.