Fan invades stage at Britney concert
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Britney Spears concert interrupted by stage invader

A fan invaded the stage a Britney Spears concert, as she performed the hit song Crazy.

The man was restrained by security and eventually removed from the stage, while being booed by fans.

Britney was performing in Las Vegas as part of her long-term residency at Planet Hollywood, which runs until December 31.

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