But she lost it so quickly we can't even picture her as anything other than her normal, skinny self.
She's looking so good, she showed off her body on the cover (above) of SHAPE magazine.
"I realize that 90 percent of losing weight is my diet. Today my workout routine is more about getting and staying toned. And for me, that means either taking hour-long walks a few times a week or jumping in the pool three or four days a week to do 45 minutes of aquatic exercises."
Working out only helps you burn a few extra hundred calories a day, which could easily be undone with a slice of pizza or two.
So remember, the key to losing weight is more about your diet than anything else. Exercise is important but food comes first.