Koharu Kusumi (久住 小春 Kusumi Koharu, born July 15, 1992 in Washima (now part of Nagaoka), Niigata, Japan), is a J-pop singer, actor, television personality, essayist, and model. From 2005 to 2009, she was a member of the Hello! Project group Morning Musume from 2005 to 2009, the only seventh generation member. She also served as the voice of Kirari Tsukishima, the main character of the anime series Kirarin Revolution (2006–2009), and was featured in several musical releases affiliated with the series, including both solo releases under the name Kirari Tsukishima starring Koharu Kusumi (Morning Musume) (月島きらりstarring久住小春(モーニング娘。)) and group releases for the units Kira Pika and MilkyWay. Currently, she is a member of Dream Morning Musume, a J-pop group consisting of former Morning Musume members.