MUCC is a Japanese rock band formed in Ibaraki, Japan in 1997.

The band has three members:
逹瑯 (Tatsurou Iwakami, vocals)
ミヤ (Masaaki Yaguchi, guitar)
YUKKE (Yusuke Fukuno, bass)
former member:
SATOち (Satochi Takayasu, drums; 1997–2021)

In 1997, ex-member Hiro was the bassist, replaced by YUKKE in 1999.

The band’s name, decided upon by guitarist ミヤ, was originally the name of a character from the Japanese children's program “Ponkickies.” The band is also known as "six-nine” from a play on words, since six-nine can be pronounced “mukku” (六九) in Japanese. June 9th (6/9) is also known as “MUCC day” by their fans.

(Source: last.fm)