What? Jennifer Lopez gave a bit more of herself on stage than planned during her Dance Again World Tour stop at the O2 Arena in London. One of her attention-hungry nipples escaped from her bodice as she was gyrating. She should have known it would happen, though, since she was wearing the same Zuhair Murad getup when that pesky mind-of-its-own nip slipped out earlier in the month during her performance in Bologna, Italy. (Photo: Pacific Coast News)