Gaga Plays Surprise London Club Show

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December 16, 2010 | 11:20am EST

Lady Gaga stunned gig-goers in London on Wednesday by showing up unannounced to perform with her support act at a tiny club venue.
The Poker Face hitmaker was a surprise guest at Semi Precious Weapons’ show at the O2 Academy2 Islington in the U.K. capital.

Gaga joined the group for two songs and danced onstage dressed in just her bra and leather trousers, before taking to the drums and playing the instrument during the set.

The singer is in the city ahead of two concerts at the O2 Arena on Thursday and Friday.