Moriuchi, now 28, was born to famous enka (e.g. old school) singers Masako and Shinichi Mori. In the early 2000s, he briefly belonged to the boy band NEWS, which would go on to become famous after he left. It wasn't a good fit: He didn't like the band's sound and chafed against its rules (boy bands have lots of rules). "When I started singing, I was 13 years old and I was in some boy band group," he says. "It was not my style. That's why they moved me to more comfortable music for me, more rock and roll."