Without Nirvana there is no Pearl Jam, without Pearl Jam there is no Soundgarden. Not true. There was a grunge band back in the day called Mother Love Bone. They were awesome, and they were changing the shape of rock and roll. They contained Stone Gossard and Jeff Ament, now of Pearl Jam. The lead singer, Andy Wood, died of a cocaine overdose (how surprising, eh?). Everybody was really sad, so Chris Cornell (Andy Wood's roommate at the time) joined with the rest of Mother Love Bone (and Eddie Vedder, to a point --he made an appearance or two) to create a tribute album -- Temple of the Dog. You've probably heard the song "Hunger Strike" before; that was their biggest hit. Anyways, "Black Hole Sun" is one of the top 5 songs ever recorded, and Superunknown is one of the top 10 albums ever recorded. Soundgarden's complexity wins. And Chris Cornell has an AWESOME voice, as opposed to Billy Corgan's annoying whimper.