The Biggest Onstage Celebrity Falls, Mishaps, and Injuries Caught on Tape

Poor Harry Styles! The singer had another mishap on stage at London's O2 arena in April, but it wasn't due to a fan. Harry's bandmate Liam Payne pantsed him in front of hundreds of screaming girls while they were performing "You Don't Know You're Beautiful." Of course, the fans enjoyed the show, and Harry was able to laugh it all off.