ムック (MUCC) is a japanese rock band formed in Ibaraki, Japan in 1997. The band has four members: 逹瑯 (Tatsurou Iwakami, vocals), ミヤ (Masaaki Yaguchi, guitar), YUKKE (Yusuke Fukuno, bass) and SATOち (Satochi Takayasu, drums). 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