The singer and frontman for Seattle's Soundgarden, Chris Cornell forged a solo 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 more toward a true singing style. Euphoria Morning, his first solo album, was in a more singer/songwriter mold, but he also pursued true pop music on 2009's Scream, with help from producer Timbaland. Cornell also joined forces with former Rage Against the Machine members as Audioslave, and continued recording and performing -- both as a solo artist and with a resurgent Soundgarden -- until his tragic suicide in 2017.