Do you know "KAT-TUN" that is group of pop stars? They belong to Johnny's office that is a star office only men. That group was formed 2001. Their name resulted from member's name- Kazuya Kamenashi, Jin Akanishi, Junnosuke Taguchi, Koki Tanaka, Tatsuya Ueda, Yuichi Nakamaru- but 2010, Jin Akanishi seceded from KAT-TUN because of difference of a way of thinking. Jin Akanishi don't resign a star. He works based in USA. KAT-TUN became group of 5 person but their funs didn't leave from them. KAT-TUN had a lot of problem and they cause uneasiness for funs but their funs love them. Their performance is very cool. For example their music has a rap and human beat box. This is very enjoyable to listen. Their dance has a acrobatics. This is very enjoyable to see their performance. They are noticeable group.