Interstellar Rock Star — Edward Willett

Kit is a tough streetkid from a backwater planet, living hand-to-mouth as a musician, playing in alleys and tube stations and sleeping wherever he can find shelter. Then he meets two people who change his life: Rain, a bright-orange tentacled alien, and Qualls, a talent scout who promises to make him a star. Overnight, Kit becomes Andy Nebula, interstellar rock sensation. But stars don't last forever, and as Kit's starts to fade, Qualls introduces him to another alien called The Dealer. Suddenly Kit and a young female fan find themselves caught up in something a lot less glamorous than the music business - and a lot more deadly.