PICTURES! One Direction sing Live While We're Young at iTunes Festival!

One Direction iTunes Festival Zayn

Here's snaps of One Direction from last night's iTunes Festival gig, as they wowed thousands of fans with a surprise performance of their new single.

The group performed their upcoming track Live While We're Young at the event yesterday after it leaked earlier in the afternoon, promoting the song's official premiere to be pushed forward from Monday.

The five piece certainly didn't disappoint fans at the Roundhouse in London.

The group were also interviewed on stage by Nick Grimshaw and fellow Annie Mac, and asked the boys to describe each other in one word.

Zayn described Harry as "sexy", Louis labelled Zayn as Kind, Niall called Louis "spontaneous" and Niall was branded "cute" by Liam Payne!

Finally, Liam, was described as "sensible" by Harry, who also confessed in the chat that he would love to change his name to Dave.

Browse the pictures below..

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