A grindcore band from the late '80s/early '90s. Their singer Seth Putnam died this year of a suspected heart attack. I'm not 100% sure on the tolerance for swearing here and I don't want to get banned so if you want to know what 'AC' stands for in this context then Google 'Seth Putnam'. I assure you it's NSFW so, yeah, be careful.
edit - Yeah, it's already been suggested. I fail at forums.