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The Capital Late Show With Marvin Humes 10pm - 1am
Max, Siva, Jay, Tom and Nathan reveal what it was like filming 'Lightning' - their raunchiest video to date.
The promo sees the boys head to an LA ranch to be joined by a group of party-going extras.
However it wasn't all plain sailing for the boys after band member Max George required medical treatment following a wasp sting.
Check out the behind the scenes video below...