One Direction singing theme of The Backstreet Boys in concert - Video

One Direction always surprised his fans to each concert, and Stockholm could not be the exception to prove the spontaneous they are.

As is usual, the guys were transmitted some tuits directioners them that the Mandan, and one of them asked to interpret 'I Want It that way' by The Backstreet Boys.

This time it was recorded by one of the fans and seen by the same The Backstreet Boys, who soon began to congratulate to one direction. "We heard that @OneDirection singing part of I Want It that way in Sweden. Well done brothers' ," wrote on Twitter.