A little over a month ago Britney Spears was relying on diet pills and Red Bull to keep her weight under control, but now that she's got her banging body back, she's keeping her skin looking smooth with Bliss' FatGirlSlim cream. Earlier this summer, Britney and a few of her girlfriends headed into a Sephora store in Toronto, Canada, to buy up every jar of the magical cream, which claims to reduce the appearance of cellulite and make skin look smoother and firmer. A friend of the pop tart tells me the cream is part of Britney's new health kick and beauty regime.

"Britney is healthier than she's been in over three years. She's working out every day while she's on tour - she's confident in her body and her dancing again because she's tight and toned. She was shaky at the beginning, but she's building muscle and with it comes a renewed confidence in her talents," the insider tells BettyConfidential.com.

Instead of junk food like Cheetos, Britney is chowing down on healthy vegetables and chicken and is snacking on fruit.

"Now that she has her old body back she feels a little bit like her old self. She is working very hard to stay in shape and look great. Britney is really taking her eating and fitness seriously."

While her dad, Jamie Spears, keeps Britney on a tight budget, he's allowing her to indulge in beauty products. "Britney had already tried the FatGirlSlim cream and wanted to get more of it for the summer to keep her bikini body in shape so that's why she bought every jar of FatGirlSlim that the Sephora store had. And she wasn't just getting it for herself, she bought some for her backup dancers, too."

At $29 for a 6 oz. jar, you can have the Britney bikini body, too.

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