KAT-TUN are a Japanese pop/rock groupformed under Johnny & Associates in 2001 in Tokyo, Japan and signed to J-One Records, their own exclusive record label under J Storm, Inc., in 2006. The group consists of Kazuya Kamenashi (
亀梨和也), Tatsuya Ueda (
上田竜也) and Yuichi Nakamaru (
中丸雄一). Their name is derived from the first letter of the members' family surnames. The pronunciation is supposedly close to the English word "cartoon" (or kah-toon). Former member Jin Akanishi (
赤西仁) left KAT-TUN in 2010. Koki Tanaka (
田中聖) was removed from KAT-TUN in 2013 because the agency de…
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