1. (ＤＥＥＮ) , DEEN is a Japanese popular music group. It made its debut in March 10, 1993 with a single 'Konomama Kimidake wo Ubaisaritai' that sold over a million disks. Members frequently changed until the release of first album, and from there DEEN had 4 members, the main vocalist 池森秀一(Ikemori Shuichi), the keyboard 山根公路(Yamane Koji), the guitar 田川伸治(Tagawa Sinji), and the drummer 宇津本直木(Utsumoto Naoki). In January 2000, Utsumoto left the group.