This year was all about the bikini for a number of hard-bodied stars. Jessica Alba showed off her fit frame when she hit the beach in St. Barts earlier this year, while models Kate Upton and Gisele Bündchen rocked their assets in string two-pieces. Meanwhile, Julianne Hough got over her broken heart following her breakup with Ryan Seacrest by taking a girls' trip to Miami with pal Nina Dobrev. See all those moments and many more, including Kim Kardashian's pregnant bikini snaps and Kate Moss's swimwear-filled vacation, in our roundup, and make sure to check out all our best of 2013 coverage!
The 50 Hottest Bikini Moments of 2013
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