松本潤
From 2005 to January 2007, KAT-TUN was a regular participant in the variety show "Utawara Hot Hit 10" with Jun Matsumoto. From October 8, 2006, members Tanaka Koki &amp; Nakamaru Yuichi hosted the show YouTachi! YOUたち! together, until the show ended on September 30, 2007.