Kitty GYM was a temporary Japanese idol unit formed in 2006 to promote the 2006 FIVB Volleyball World Grand Prix. The group consisted of Tomohisa Yamashita of NEWS, Thai pop duo Golf &amp; Mike, and members of the Johnny's Jr. group Kitty (Hiromitsu Kitayama, Kei Inoo, Shota Totsuka, and Hikaru Yaotome). The name of the group came from the first letters of the members surnames, and the Thai members pseudonyms.