Kristin Cavallari of The Hills fame is probably best known as the girl-next-door who always gets her man. But that doesn't mean that she doesn't work for those bikini-ready curves. Although Cavallari has admitted that she hasn't always worked out consistently, these days she's all about getting in a tough workout.
Cavallari regularly hits Burn 60 in Los Angeles for high-intensity interval classes that burn major calories and build strength. She also works with a personal trainer, has a great attitude about working out and follows a healthy diet. It's all the makings of a fit body!