Last updated at 12:22
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Justin Bieber turns on Christmas lights in London

Check out what happened when Justin Bieber rocked up in London to perform and turn on the Christmas lights at two shopping centres.
Justin's been having a great few days in the UK. On Sunday, he picked up awards for best pop act and best male at the MTV European Music Awards, in Belfast.
Justin Bieber
Lasers and fireworks were part of Justin's performance at the Stratford Westfield centre, where some fans had been waiting for a glimpse of their idol since 4am.
Lasers during Justin Bieber's performance at the Stratford Westfield shopping centre
The Biebster had a helicopter to whisk him away from Shepherds Bush and make sure he made it to the second venue in time. Very showbiz!
Justin Bieber
But he wasn't left to do everything on his own.... British boyband The Wanted also joined him on stage at one point.
Justin Bieber on stage with The Wanted
Biebermania swept through London when Justin Bieber switched on the Christmas lights at two big shopping centres in the city.
Justin Bieber
Fans crowded into the centres in Shepherds Bush and Stratford to watch the 17-year-old perform.
Fans at Justin Bieber performance