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Britney Spears sure knows how to work fast: Only a few weeks after the release of the music video for her number-one single, 'Hold It Against Me,' the Grammy-winning superstar is already putting on another show -- this time, in the video for her follow-up single, 'Till the World Ends.'

Spears has never looked better in this almost-too-hot-for-the-Internet video, in which the leather-clad singer performs and dances in some type of underground nightclub.

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