October 30, 2008 02:25 PM

Britney Spears has already revealed a video of her fitness regimen – and the pop star is still at it. Witness a new picture of Spears in the dance studio, working up a sweat as she prepares for her tour next spring.

In a series of photos – some black and white, and some color – posted as a gallery on the singer’s official Web site Spears is show in action with her dancers.

Although she is hard at work, family is still close to her heart – literally. In the above photo, mom-of-two Spears, 26, wears two Key to My Heart pendants with the names of her children Sean and Jayden.
Pete Norman

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