久住小春 (Kusumi Koharu) is a model, actress, TV personality and singer. She is a former member of the idol group Morning Musume. and the side unit Dream Morning Musume., as well as a former exclusive model for the fashion magazine CanCam. Kusumi joined Morning Musume. in 2005 as the only seventh generation member, being only twelve years old when she joined. Shortly after joining, she was given the role of Tsukishima Kirari for the anime Kirarin☆Revolution. She became the youngest Hello! Project soloist to debut following the release of "Koi☆Kana". She graduated from Morning Musume. and Hello! Project on December 6, 2009 to pursue a career in modeling. As a Hello! Project soloist under the name Tsukishima Kirari starring Kusumi Koharu (Morning Musume.), her highest selling single is "Balalaika" with 72,709 copies. Her lowest selling single is "Hapi☆Hapi Sunday!" with 14,468 copies sold.