Even if you take Soundgarden off his résumé, the late Chris Cornell was one of the most dynamic and adventurous rock singers to emerge in the 90s. He explored lush psychedelia and folk-informed songwriting on solo albums like Euphoria Morning and Higher Truth, and was a must-have soundtrack guest, whether crafting sprawling acoustic gems like "Seasons" for Cameron Crowes Singles or teaming up with Joy Williams for 12 Years A Slave. He created funk-informed arena rock with Audioslave and an a Generation X-defining duet with Eddie Vedder on Temple of the Dogs "Hunger Strike." Just to prove there was no genre he feared, hes the only rock singer to have worked with both Timbaland and the Zac Brown Band, while always sounding unmistakably like himself.