Jennifer Aniston had a busy year between making and promoting movies, vacationing with friends, and stepping out with John Mayer. February was a particularly big month, with Jen celebrating her 40th birthday just weekends before she brought along John to the Oscars. When she wasn't hard at work filming The Baster or The Bounty, she showed off her bikini body and made the awards show rounds — take a look back at some of Jen's memorable moments and check out the rest of our Best of 2009 slideshows and polls here.
Best of 2009: Jennifer Aniston's Year in Review
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