Original Guns N' Roses bassist Duff McKagan recently revealed that the band was listening to some surprising albums when they recorded 'Appetite for Destruction.' In other words, it wasn't a steady diet of Aerosmith and Mötley Crüe. The same holds true for him now in Velvet Revolver: He points to Beyoncé's 'Single Ladies' as one of those tunes that'll get stuck in your head. "Killer song," he says.