Goto Mariko (後藤まりこ) is a j-pop singer from Osaka, Japan signed to DefStar Records. She is best known for being the former singer and guitarist of the jazz fusion group ミドリ (Midori). Goto entered the public eye during the success of her band ミドリ. The members of Midori first met when they were members of two different bands. Goto was a member of the band うさぎ (Usagi) along with Kuwano Yoshifumi. The two were friends with a fellow band in Osaka known as Teromeya. The two expressed in interest in wanting to play in band with Teromeya's drummer Kozen Yoshitaka.