Harry also pulled a prank on Piers Morgan, yanking his shorts down - and Piers never saw it coming. Well played, Harry. Check out how proud he is of himself afterwards.
Harry may want to wear a belt though, because Piers is looking for payback, tweeting: "Revenge will be sweet @Harry_Styles ...watch your shorts."
Piers' team had the last laugh, however, beating Niall's team in the match...but the real winner is the charity, Irish Autism Auction.
Want More? Like us on Facebook
Gallery | One Direction 'Where We Are' Tour Pics