BACK-ON is a five-piece Japanese rock band from Tokyo, Japan. The band's combination of metal riffs, hip-hop poses and electronic atmospherics has cause a stir in the Tokyo club scene since the five-piece first started in 2002. The band's name when using kanji literally means "Sound Explosion" and was given to them by Jesse the vocalist and one of the guitarists from the band Rize.
Tanaka Roma is a bilingual (in English and Japanese) singer and dancer, who was born and raised in San Francisco. In 2006, he debuted under King Records with the single One / No Change No End. He is known for collaborating with Dohzi-T on his single Better Days which also features Kato Miliyah.