Teenage pop band The Vamps will be signing autographs at Westfield Stratford City on Monday.
Lucky competition winners will be able to meet and greet the heart throbs at The Street from 3.30pm.
The band will be playing in front of 2,000 fans at Westfield London earlier in the day before heading east to Westfield Stratford City.
The group, whose track Can We Dance reached number two in the charts, played at Westfield London last year as part of Westfield Presents.
Fans can win tickets by visiting meetthevamps.com
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