Marilyn Manson
He doesn't always bring the strongest performance, but the theatrics of his shows are notorious, and have always been politically controversial or symbolically intriguing to some extent. Plus, it's fun watching him get pissed at his band members from time to time. I've heard his live shows have been a bit of a joke lately - but the dude's getting old, and I think his wild past is finally starting to catch up to him (see Ozzy).