Sayumi Michishige [道重 さゆみ Michishige Sayumi is born on July 13, 1989 in Ube, Yamaguchi Prefecture, Japan. She is a sixth generation member of the J-pop group Morning Musume and has the third longest tenure of any member in the group (behind Risa Niigaki and Ai Takahashi and tied with Reina Tanaka. She joined Morning Musume in 2003 along with Eri Kamei, Miki Fujimoto and Reina Tanaka, which all made their debuts with Morning Musume in the group's nineteenth single, "Shabondama". In 2005 she was assigned as mentor to 7th generation member Koharu Kusumi, until Kusumi's graduation in December 2009.







