Although Slipknot made their mainstream debut in the late '90s, singer Corey Taylor and guitarist Jim Root got their start a few years prior in Stone Sour. Described as a cross between Metallica and Alice in Chains, the group spent several years playing the Iowa bar circuit before the two men joined Slipknot. Stone Sour re-formed in the early 2000s, though, and quickly distinguished themselves with a pair of gold-selling albums and three Grammy nominations. The band's reunion began in early 2002, when Root and Taylor contacted original guitarist Josh Rand and bassist Sean Eco...