Real name: 石井賢二 (Kenji Ishii)

賢二 (romanized Kenji), stylized as "Kenzi" (born July 3 in Kyoto) is a Japanese drummer. Former Kamaitachi member from 1985 to 1991, he is the drummer and leader of The DEAD P☆P STARS since 1992.

In 1991 he founded his own session band and solo project ∀NTI FEMINISM, with everchanging support musicians (over 200 since the debut).
He is also the founder and president of the independent record label Anarchist Records since 1992.