If you're doing it right, Just Dance 3 probably already makes you work up a sweat. Now Ubisoft is capitalizing on that notion with two downloadable content packs that emphasize staying in shape with the power of dance. They're available today for Xbox 360 and tomorrow for the Wii -- the PlayStation 3 version is excluded, for some reason.
Titled the "Just Sweat Packs," they will each will cost you $6 (480 MS Points, 600 Wii Points). It promises "fitness-focused" moves, along with new tracks from the Sweat Invaders: Beat Match Until I'm Blue, Touch Me Want Me, Dun N Dusted, Cardiac Caress, Merengue, and Boomsday. If holiday hams and desserts packed on a few pounds, you might be able to take it back off with some smooth moves.