Various acts including the London Gospel Choir, Blake, and Beverly Knight are performing at the mall today, with thousands of cup cakes being given out by a team of roller-girls.
Tomorrow will see the cast of Wicked perform live in The Atrium, while on Sunday street dancers will be entertaining shoppers throughout the day.
"We're delighted with the success of The Atrium at Westfield London during 2009, now that it has established itself as London's newest and most exciting event venue," said Westfield London head of events Joe Russell. "We very much look forward to welcoming more brands and agencies into the space in 2010."
The centre opened on 30 October last year with.
The BT Visit London Awards hosted by radio presenter Neil Fox will be held at the venue next Thursday (5 November).
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