Infest

Infest was an influential American hardcore band, formed in September 1986 by Joe Denunzio, Matt Domino, Dave Ring and Chris Clift. They disbanded in 1996. Infest, while not coining the term "powerviolence", were pioneers of the style. The Los Angeles quartet blended the ethos, speed and song structure of straight edge hardcore, along with the aggression and anger of bands like Negative Approach and Negative FX. Joe Denunzio’s vocals exhibited angst, with lyrical content about conformity, war, scene politics and socio-political issues, mostly delivered in an accusational assault.
They're really good, really catchy, super hard, awesome band.