Just something they threw together in the heat of the moment

One Direction having a dance off with Alan Carr has become as standard as Simon Cowell wearing a deep-v, Niall Horan having a Nandos, or Tulisa reminding us to "keep it real."

The boys are on Alan Carr's Chattyman tonight (Channel 4, 10pm), where they bust out what is perhaps their greatest dance off yet.

one direction on alan carr chattyman september 2012

Rather than whip out their individual moves in an attack of the thrusting and lightbulb-screwing, One Direction go for a co-ordinated group number, ambushing Alan with an onslaught of style and swagger, five times as powerful as before.

one direction dance off on alan carr

If you can face it, click next to to see who won, and to see pics of the boys' reaction.