Mutant Monster is the vocal duo of:

BE:wild bass.vocal　　

MEANA:rude guitar.vocal

Chad:drums and vocals

Be and Meana formed Mutant Monster in May 2008. They were high school students. The girls quickly gained popularity when they performed at local live houses.

They collaborated with the famous punk rock band The Star Club in late 2008. Mutant Monster’s 1st mini-album Follow Me was released in July 2009. The CD was limited to 2000 copies.

In 2011, the original drummer left the band. She was replaced by Chad who became an official member in November 2012. Their 1st full album True Tone was released nationwide in December 2011. Mutant Monster participated in hundreds of live performances since their debut. They are still indies.

The girls were the guests of Japan Expo Sud in Marseille, France, in March 2015.