天上天下
, better known by his stage name is a Japanese musician, rapper, singer and record producer with Avex Trax. He graduated from Hokkaido Sapporo Tsukisamu High School and the Hokkaido University of Education. His debut single as m.c.A·T, "Bomb A Head!," released in 1993 on Avex Trax, has since been re-released as "Bomb A Head! Returns!" in 2003 featuring DA PUMP and as "Bomb A Head! V" in 2004 as the opening theme of "Tenjho Tenge".