Corrosion of Conformity (often abbreviated as C.O.C.) is an American heavy metal band from Raleigh, North Carolina, formed in 1982. The band has undergone multiple lineup changes throughout its existence, with lead guitarist Woody Weatherman as the sole constant member. Weatherman, founding bassist Mike Dean, founding drummer Reed Mullin and vocalist/rhythm guitarist Pepper Keenan (who joined the band in 1989) are widely regarded as its "classic" lineup. After a hiatus in 2006, Corrosion of Conformity returned in 2010 without Keenan,... [more on Wikipedia]