The singer and frontman for Soundgarden, Chris Cornell also forged his own career after the band's initial break-up in 1997. Soundgarden had rightfully become one of rock's most popular bands on the strength of such albums as Badmotorfinger and Superunknown. And with each album, Cornell's vocals grew stronger -- farther away from heavy metal screaming and toward a true singing style. Euphoria Morning, his first solo album, was in the singer/songwriter mold, but he also pursued true pop music on 2009's Scream, with help from producer Timbaland. Cornell also joined forces with f...