Jennifer Aniston and fiance' Justin Theroux surprised friends and family yesterday when the birthday party guests believed they were attending turned out to be wedding, according to People.com.

People has the full scoop on the intimate affair hosted in the backyard of their Bel Air home, and how they managed to keep it a secret all but their closest friends and family.

Aniston's relationship status has been speculated about for the past several years after her much publicized divorce from actor Brad Pitt.

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