C.O.C. debuted in 1983 with the thrashy, Black Flag-influenced Eye for an Eye, featuring a lineup of Weatherman, drummer Reed Mullin, vocalist Eric Eycke, and bassist Mike Dean. They began to build up a cult following with 1985's Animosity, but their label at the time, Death, grew tired of their internal instability -- lineup changes found Eycke replaced by vocalist Simon Bob -- and dropped them following 1987's Technocracy. It took several years for a new lineup to come together -- featuring Weatherman, guitarist Pepper Keenan, Mullin, vocalist Karl Agell, and bassist Phil Swisher -- but when it did, the result was 1991's Blind, a powerful, focused, more metallic record that increased their audience by leaps and bounds. Agell was fired following its success, and he and Swisher went on to form Leadfoot; meanwhile, Keenan became the full-time lead vocalist on 1994's even more Sabbath-esque Deliverance, which also featured the return of original bassist Mike Dean. During 1995, Keenan took a short detour into the Southern metal supergroup Down (which also featured Pantera's Phil Anselmo and members of Crowbar).