Nicole Richie's not the type of girl to let a little thing like a DUI slow down her life - yesterday, we caught her sneaking onto the set of Good Charlotte's video shoot in East LA to visit new boyfriend Joel Madden! The shoot's security team did their damnedest to hide Nicole away from our cameras, but we managed to get a little footage of her standing around. Too bad we couldn't get any footage of whatever happened when she slipped into Joel's RV!