10/30/2008 at 02:00 PM EDT
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