Pictures of Celebrity in Bikinis, Summer 2011

Guess the Celebrity Abs: Summer 2011 Beach Edition

Hollywood's hottest stars are really taking advantage of the Summer this week. Whether it's Hawaii, Italy, or California, we've seen more than a handful of stars soaking in the sun — and all of them definitely look like they put in time to become bikini-ready! Check out these pics and see if you can guess who we spotted showing off their toned stomachs.

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