Look out, lambs! Mariah Carey is back to her bad self, showing some serious skin in her new Jenny Craig ad.

Carey has notoriously struggled with her weight both before, during and after her pregnancy with "dem babies." Even before her pregnancy, certain mean-spirited media outlets even gave her the nickname "Moo-riah." Cold! Mimi gained close to 70 pounds when she was carrying her adorable twins Moroccan and Monroe, but she lost all of the extra weight and looks better than ever.

Carey was self conscious about her pregnancy pounds. Not only did she have to deal with media speculation of her figure, but she even felt insecure at home with hubby Nick Cannon. "I had a towel on in the tub," Carey told Gayle King in November. "You think I would let Nick see me looking rancid like that?" And while Carey didn't want Cannon to look at her, she also didn't want to look at scales. "I didn’t want to know [my weight], because why would I want to feel that bad? I know it was a number that I never want to see again."

From the looks of it, she won't! Carey first debuted her post-baby bod in August with a photo at the beach, but her enviable curves were obscured by waves. We later caught a glimpse of the toned diva when she popped by 'The Rosie Show' last month.

However, Carey didn't debut her toned tummy until she dropped her Jenny Craig commercial, set to a modernized version of her hit 'Make It Happen' -- a song she chose deliberately.  "The 'Make It Happen' song resonates with people because it comes from a real place," Carey said. "I had to push through a lot of adversity in my life and this is just the next chapter."

They say you can't judge a book by its cover, but if that's what the next chapter of Carey's life looks like, we can't wait to read the rest!

Watch Mariah Carey's Jenny Craig Commercial