‘Dancing’ Stars Reveal Amazing Body Makeovers

The competition on “Dancing with the Stars” was kicked up a notch last night, with Jennie Garth scoring her first perfect 30.

“Extra's” special correspondent Cheryl Burke told Jennie backstage, “And you didn't cry! But now's the time to cry, Jennie!”

“I can't!” she said, still smiling.

Jennie has a lot to smile about. The actress and mom has dropped ten pounds, a feat she calls “unbelievable.”

Julianne Hough told “Extra” she's keeping partner Helio Castroneves in check for Thanksgiving – and that means no stuffing!

Julianne says they'll simply “practice and get a turkey sandwich.”

Marie Osmond, who impressed the judges with her dance number, has also completely revamped her body thanks to her “Dancing” routines.

“I've lost 30 pounds,” Marie proudly told “Extra.”

But Melanie “Scary Spice” Brown said her non-stop workouts have revamped her body in an unexpected way.

“My bum got bigger!” she confessed. “I had my measurements done for the Spice Girls tour and they were like, 'Damn!'”

But it's Scary Spice's rehearsal time that's downright frightening.

When “Extra” asked how many hours she'd practiced this week, she said with a smile, “I'm not answering it!” as partner Maksim Chmerkovskiy frowned. “I practiced so much…in my head,” she admitted.

Now, with only for “Dancing” pairs left, somebody will go home tonight as the countdown to the finale heats up.

Who do you think will win? Sound off here!