VIDEO: Working Out With Britney

With all her legal troubles behind her, the Britney Spears career rebound train is moving forward full-steam-ahead!

In a new video released on the singer's personal site, BritneySpears.com, the pop star is hard at work getting back into the tip-top shape that made her a superstar.

(Scroll down for full video)

CLICK HERE for OK!'s Ultimate Gallery of Britney Pics!

Brit-Brit, with the help of her trainer, is getting into shape for her upcoming concert tour to promote her new album, Circus, which is set for release on her 27th birthday, Dec. 2. Her current single, Womanizer, is already burning up the pop charts.