MAA was born on January 25, 1986, in Yokosuka, Kanagawa to a Japanese mother and an American father.
[2] They were later joined by bassist Azusa and drummer yu-ya before releasing their debut album Sister on May 14, 2008.
[3] Four of the songs from their album were performed by the band on May 3, 2008, at the first day of the hide memorial summit,[4] which gave Marbell the opportunity to play for a huge audience at Ajinomoto Stadium.
Only six months later Mar debuted as a solo artist, under the name MAA, with the single "Ghost Enemy".
The EP Monkey Kingdom was released on December 1, 2010, and reached number 158 on the Oricon chart.