There are 8 bands called Ground Zero:
(1) An experimental rock group from Japan (Go to Ground-Zero)
(2) dark hardcore/metalcore band from Serbia
(3) melodic death metal band from Italy.
(4) thrash/death metal band from Japan. (Go to Ｇｒｏｕｎｄ Ｚｅｒｏ)
(5) hardcore punk band from the US
(6) American punk band from early 80s.
(7) Crust band from Russia
(8) Progressive metal from Hungary (1) Ground Zero a Japanese experimental noise/jazz group formed by 大友良英(Otomo Yoshihide) and Altered States with various japanese instrumentalists, sometime noted asGround-Zero.

Read more about Ground Zero on Last.fm.