Well, one thing we can tell you about smoking-hot Cambridge rapper SAM ADAMS -- unlike John Mayer, his dick is not a white supremacist. In this behind-the-scenes clip from the set of his "Driving Me Crazy" video, he gets jumped by a black girl in the bathroom and cat-fought over by blondes. It helps that the the video -- concept: the quintessential "New England college experience" -- was shot in LA. Still: CLINTON SPARKS (fake-)puking in the bathroom? You can't get real-er than that!