Brit’s “Sudden” Slim Down

Whats the secret to her seemingly sudden slim-down? “She’s working out, eating right and enjoying life,” says the singer’s rep. (Some published reports also claim Spears underwent a nonsurgical liposuction procedure called LipoDissolve during a recent trip to Las Vegas.)

The mother of two – sons Sean Preston, 19 months, and Jayden James, 7 months – has also been sweating off the pounds with frequent trips to North Hollywood’s Millennium Dance Complex.

“She’s got an amazing metabolism,” owner Robert Baker says. “When she puts her mind to it, she can transform pretty easily.”

The thing I don’t get? Brit was pretty slim BEFORE she went into rehab – check out this pic of her in a bikini the weekend before she entered rehab:

Britney Spears, Britney, Spears, britney-spears, celebrity, celebrities, 2007