The JLS boys, or Nando Brothers” as they are known in the X Factor house because of their obsession with the chicken take away, have, as always been practising hard all week. But they did get a chance to let their hair down this week when The Xtra Factor hosted a Halloween party.

Poor old Aston got the short straw when the costumes were handed out and he ended up being a devil in a tight red leotard!

Will Young loved the boys at the master class and she said he thought they were really great and that the public had yet to see the best of them.