moumoon (ムームーン) is a Japanese pop duo consisting of two members: vocalist and lyricist Yuka and composer Kousuke Masaki. Formed in 2005, the duo signed with Gate Records in 2006, and released their debut single "Flowers/Pride", and mini-album Flowers that September. In 2007, they left Gate Records and signed with Avex Trax, releasing their second mini-album, Love Me? in August. The duo's name is a combination of the French "Mou" and the English "Moon", together meaning "Soft Moon"