Bristol Palin's Wonderful Excess weight Loss : How She Did It!

Bristol Palin's back on Dancing With the Stars: All-Stars -- with a hot new bod!

Returning to the ballroom alongside her season 11 pro partner Mark Ballas, Palin wowed DWTS judges Carrie Ann Inaba, Len Goodman and Bruno Tonioli with her cha cha, but also impressed with her slimmer waistline.

" I am surely in better shape than I was final time, undoubtedly. I am just more active and I lower all the crap out of my eating plan ! It is that easy," Palin, 21, told Us Weekly backstage Monday right after earning a score of 19 factors out of 30 from the judges, which includes Inaba, who declared Palin the "most improved " returning contestant. "And my kid's a lot much more rowdy, a good deal a lot more active. I am running immediately after him a lot ! He's large ! He thinks he's a teenager already."

Palin's mom, former Alaska governor Sarah Palin and father, Todd, joined her son Tripp, three, in the audience to view the DWTS premiere, and the returning celeb dancer told Us her loved ones remains a enormous motivating element in her ballroom good results. "If I ever hear anything at all poor that is becoming stated about me or my household, it just offers me determination to do far better, and which is what I do!" reasoned the reality Tv veteran, who starred in Lifetime's Life's a Tripp right after her 1st DWTS stint in 2010.

As they face off against DWTS: All-Stars competitors Kirstie Alley, Pamela Anderson and other people this season, Palin and Ballas look forward to working with her newfound confidence to their benefit in the rehearsal studio.

Video : Kirstie Alley wants to turn out to be a " dimension zero" in the course of DWTS: All-Stars

"We picked up wherever we l eft off. We stayed in touch given that last time and we just went back into it. We balance every single other," Ballas, 26, explained. " I am loud and obnoxious and she's quiet and chill."

Additional his companion : "Mark says he's like a chimpanzee and I am like a turtle, poking out of my shell!"