Video: Lady Gaga gets wild at the Rolling Stones’ NJ show

We know Lady Gaga joined the Rolling Stones on stage at their Prudential Center show this weekend, but she also proved she is as big a fan as anyone offstage. Much to the discomfort of her security detail, Gaga let loose during Start Me Up with what appears to be her pal Lady Starlight (wearing the Chad Pennington NY Jets jersey). At one point she even implored photographer Terry Richardson to get a photo of her on the railing. Watch below: