If you thought the only thing Ellison writes is speculative fiction, craziness about giant cockroaches that attack Detroit or invaders from space who look like pink eggplant and smell like chicken soup, this dynamite novel of the emergent days of rock and roll will turn you around at least three times. No spaceships, no robots, just a nice kid from Louisville with a voice like an angel and an invisible monkey named Success riding him straight to hell…