Melissa Rycroft stops in her tracks after seeing the sexy photo of herself on Us Weekly's newest cover: "DWTS Diet Secrets."

"Sexy butt and legs!" she animatedly reads from the cover in the Access Hollywood video (watch below). "You tell me how!"

See DWTS rehearsal photos.

The issue, on stands now, reveals how all the girls remain trim (Julianne Hough, for example, swears off carbs; while Cheryl Burke -- slammed for gaining a few pounds last October -- has given up salt) with a few simple tricks -- and dancing!

Check out photos of stars working out.

But, admits Rycroft, who was recently spotted at a KFC: "I'm a southern girl. You make it fried, I will eat it."

For the stars' exact diet tips (including 10 foods they swear by), easy workout moves and plenty of before and after photos, pick up the newest issue of Us Weekly, on stands now.