Related Information for Koike Teppei Koike Teppei (小池徹平, born January 5 1986, Osakasayama, Osaka Prefecture) is an actor and singer from Japan. He is a member of the singer-songwriter duo WaT with his partner, Eiji Wentz (ウエンツ瑛士).He was the grand prix winner of the 14th Junon Super Boy Contest in 2001. His first music solo project was announced on January 10 2007. His first solo single "Kimi ni Okuru Uta" was released on February 14 2007, Valentine's Day, with Wentz solo song "Lucky de.. read more