One Direction's Liam & Niall Overwhelm Fans With Surprise Show!

If One Direction’s fans didn’t know-oh-oh they’re beautiful appreciated, then they should DEFINITELY be well aware by now!
1D members Liam Payne and Niall Horan surprised some lucky shoppers on Thursday, when they showed up at a Westfield mall in London for an impromptu performance!
Check out two-fifths of the Brit boyband (above) taking on their hit song, What Makes You Beautiful!
We love when Niall strums away on that guitar…and pretty cool of Liam to switch up the key a bit!
Guess the boys felt like they had a little gratitude to show their fans, after just recently hitting 12 million records sold worldwide!