Despite what the Hulkster told us when we were growing up, the wrestling business is only about one thing: making money.To that end, a lot of our favorite wrestlers have branched out to try their hand at music, and as you'll see they probably should have stuck to what they know best.1. Hulk Hogan - Hulkster in HeavenRingside IntelWith the Wrestling Boot Band backing him up, Hulk's solo album Hulk Rules is a challenge for even the toughest Hulkamaniacs to get through, but this song takes the cake. The enormous blonde hulk channels his soft side, but can't