Hilary Duff: Bikini in a Bottle

Hilary Duff strips off her sarong and shows off her bikini body in Malibu on Wednesday.

The Stranger singer celebrated the Fourth of July with her big sis Haylie and friends at the Silver Spoon Beachbody House.

How does Hilary stay so fit? She recently told Shape, “My friend was on tour with me and we made each other eat healthy. We ate a lot of protein, lots of veggies and oatmeal for breakfast. We tried to find a healthy mix, but still eat things that you like, but doing a trade-off. For example, if we wanted to eat dessert, we tried not to eat bread before a meal, or if we wanted to eat bread, we tried to lose dessert.”

“Stay healthy, eat healthy, eat what is good for your body and what gives you energy — and feed your sweet tooth every once in a while. That is the best way to go,” she added.