It seems Justin Bieber just can’t get enough of London. He’ll be back soon to turn on the Christmas lights at both of the capital’s Westfields.

The teenage pop superstar will take to the stage in The Atrium at Westfield Shepherds Bush to flick the switch on the Christmas illuminations and, never one to miss a marketing opportuntity, will perform four hits, including his new track Mistletoe.

As many as 10,000 Bieber fans are expected to descend on the venue for the event, with 100 heading backstage to meet their popstar idol, before he moves on to Westfield Stratford City.

Once there, he will switch on the lights at the outdoor Chestnut Plaza, which will be followed by fireworks and a performance of four acoustic songs, before the 17-year-old meets another group of fans.

Children supported by the Teenage Cancer Trust, the chosen Christmas charity of Westfield, will join Bieber on stage at both events.

Details on how to be one of the lucky few who gets to venture backstage to meet Bieber can be found on the Westfield shopping centre’s websites.

Last year it was Rihanna who turned on the Christmas lights at Westfield.

Bieber has also teamed up with his mentor Usher to record a new version of festive classic The Christmas Song (Chestnuts Roasting on an Open Fire).

The stars’ cosy duet will feature on Bieber’s upcoming Christmas album Under The Mistletoe, and Usher thinks the pair has recorded a classic that will become a festive favourite for years to come.

He says, “It’s a record that has always been one of my favourites, and I’m happy that I was able to share it with Justin, and for us to put it out. The album is full of surprises, Justin’s Under The Mistletoe is going to be incredible.”

Bieber has also teamed up with Mariah Carey on the album.