Hundreds of Beliebers in London, England got to celebrate Christmas early! Justin Bieber performed at Westfield Shopping Mall where he promoted his new cd, Under the Mistletoe, and officially flipped on the Christmas lights to celebrate the holiday season! Fellow Belieber, Geri Halliwell was also there to celebrate! We hope you guys have been nice, because we know you want Justin's new CD! Check out the pics and vid below!