Leona Lewis was thrown from a horse Wednesday and taken to an LA hospital where she was treated for suspected torn ligaments and put on crutches. But the singer surprised partygoers at Robin Thicke‘s New Year’s Eve bash atThe Bank nightclub in Las Vegas when she showed up hobbling. “She still looked amazing in her Betsey Johnson dress,” said one partygoer, “but she was hanging on to her boyfriend Lou Al-Chamaa‘s arm the entire night in lieu of the crutches because she didn’t want to be photographed with them by her side.”