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Exclusive Details:
Jennifer Aniston
Throws Justin Theroux
A Star-Studded
Birthday Party


On Justin Theroux’s 41st birthday, he proposed to Jennifer Aniston.
One year later, the Friends actress threw her fiancé a 42nd birthday bash at their newly renovated Bel-Air mansion.
The engaged power couple was joined on Saturday, August 10, by their celebrity friends, including Dax ShepardKristen Bell, Don Cheadle, Ellen DeGeneresPortia De Rossi, and Isla Fisher, an eyewitness reveals to In Touch.
Many guests mingled outside on Jen and Justin’s 3.5 acre estate, where hors d' oeuvres and candles were laid out on tables. Jen was delighted to be giving tours of her newly renovated home. 
Jen and Justin’s guests thought their home was “beautiful,” a source tells In Touch.
Outside the home, the star-studded party was full of laughter, cocktails and dancing. Britney Spears’ “Scream & Shout” was a crowd favorite. 
The birthday party was originally rumored to be Jen and Justin's wedding, but those turned out to just be rumors. 
And the engaged couple remains tight-lipped about when and where their upcoming nuptials will take place.
“We just want to do it when it's perfect and we're not rushed ... We already feel married,” Jen said in July.