Mariah Carey Shuns Champagne and Britney is Back - November 28 to December 5

There are so many fabulously fit celebrities out there that it's hard to keep track of who is doing what. We give you the scoop here at That's Fit all week long, but in case you missed anything, we've got it all wrapped up, too. There's practically a bow on for you!

Click on your favorite celebs above to find out what they're up to, and use that motivation to get yourself in shape!