How do I turn on Fitness Mode in Dance Central 2?

To begin tracking how many calories you burn while playing Dance Central 2, head over to FITNESS in the Main Menu and toggle FITNESS MODE ENABLED to "on" (make sure the box is checked). You'll see a heart appear in the Helper Screen (the box showing your movement in real time on the top corners of the screen) if it's been successfully turned on. You can return to the FITNESS option in the Main Menu to review your stats!