Jenna Dewan-Tatum, Jennifer Aniston

Celebrities are escaping the frigid cold winter weather and heading south to warmer climates—and they’re looking good doing it! Jennifer Aniston jetted off to Cabo to enjoy a vacation with fiancé Justin Theroux, while Jenna Dewan-Tatum showed off her baby bump in St. Barts with husband Channing Tatum. And they're not the only ones soaking up some sunny rays! Click through the gallery to more stars in bikinis in 2013.