The singer/actress, who gave birth to her son Bronx in November 2008, has revealed that she enjoyed eating a variety of snacks to put on the necessary weight.
Speaking to E! Online, she said: "I gained 50 pounds, which was awesome! I ate cake and cupcakes. I had a blast!"
As for how she lost the weight, she added: "When I wanted to get back into shape, I worked out and these shoes [Reebok EasyTone] are amazing because you can really feel them in your booty. But I also worked out and ate healthy."
Last month, Simpson and Pete Wentz's son was involved in a minor car accident.
