In the Mardi Gras part 1 episode, about two minutes into the episode. As bam says "that was seriously the worst I ever wockin up in my entire life, and now im going to Mardi Gras". Look at his left arm. Then about five seconds later his holding a guitar, about to wake up Ryan Dunn. As he's standing near the door. Look at his left arm again, he has more tattoos. Why is that?