moumoon (ムー・ムーン) is a Japanese pop duo consisting of YUKA as lead vocalist and Masaki Kousuke as guitarist
andsynthesizer. Previously signed onto the TRUE SONG label of ex-Do As Infinity founder Nagao Dai, moumoon progressed to
avextrax in 2007. The band's name consists of the French word mou (tender) and the English word moon.