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A trip to see Tinie Tempah turned into a night to forget for a number of The X-Factor stars.
Liam Payne, from the boyband One Direction, suffered a bad injury and may not be able to take part in Saturday's Halloween special show.
The teenager tripped over in front of the star and said this on Twitter, "What a doofus! Fell over on stage in front of tinie tempah.... so uncool."
Meanwhile Cher was booed by sections of the crowd at Koko in Camden and was then subjected a torrent of abusive and nasty comments on Twitter afterwards.
Mary was also at the gig but Louis Walsh's best hope seems to have been a good girl!