Biohazard

The Profile

Biohazard are an American hardcore/metal crossover band from Brooklyn, formed in 1987 by Evan Seinfeld, Billy Graziadei, Bobby Hambel, and Danny Schuler. They fused hardcore punk with heavy metal and hip‑hop elements, breaking through with Urban Discipline (1992) and State of the World Address (1994).

Formed in Brooklyn, New York, in 1987; classic lineup: Evan Seinfeld (bass/vocals), Billy Graziadei (guitar/vocals), Bobby Hambel (guitar), Danny Schuler (drums); key track: “Punishment” (1992); reunited in 2022 with the classic lineup.

DeBaser’s reviews praise Biohazard’s early 90s peak, led by Urban Discipline and State of the World Address. The debut is raw but foundational; later records get mixed marks. Uncivilization is noted for big-name guests, and Reborn In Defiance is welcomed for its renewed bite and Hambel’s return. Overall tone: respect for the fusion of hardcore, metal, and rap—and for the band’s Brooklyn-tough ethos.