One Direction's Liam Payne And Niall Horan Surprise Fans With Impromptu Gig At Westfield Shopping Centre London (PICS)

Imagine the scene. You're browsing the the rails of your local Topshop when suddenly two members of the hottest boyband in the world pop up and and start playing an impromptu gig.

That's exactly what happened to shoppers the Westfield shopping centre in London's Shepherd's Bush yesterday when One Direction's Liam Payne and Niall Horan laid on a surprise performance.

The boys took the time out of their busy schedule (and from their fellow bandmates) to treat their fans to a spontaneous version of What Makes You Beautiful.

As they took to a small pop-up stage on the mall's restaurant strip, Niall got to showcase his skills as a guitarist as Liam was on lead vocal duties, showing off a new Justin Bieber style hairdo.

But we do hope the fact that they've ditched Louis, Harry and Zayn doesn't mean they're going to 'do a H and Claire' and announce they're quitting the group *shudders*.

Yesterday it was revealed the band have sold 12m records in less than a year.

> IN PICS: ONE DIRECTION'S ROAD TO WORLD DOMINATION