A charity video shoot reportedly ended in an altercation between two X Factor contestants after Wagner tried to headbutt One Direction's Harry. An insider on the shoot told The Mirror: "Trouble flared towards the end of a video session, when tensions were already running high. "Wagner, One Direction, Nicolo Festa, Storm Lee and John Adeleye had all sung a line together and immediately after it, Harry was told to jokingly rugby tackle Wagner as he walked out of shot. "Unfortunately no one had told Wagner what was in store. "The next thing he knew, Harry was play fighting him to the ground and Wanger didn't realise the camera was still rolling. "Incensed, he shook Harry off and squared up to him, locking foreheads." Furious, Wagner said: "Don't mess with a man who knows martial arts." The source added: "Wagner then made as if to do an elaborate karate chopping movement, and shoved Harry, before staff stepped in and separated them. "It was all pretty hostile and the atmosphere afterwards was terrible."
