Jennifer Aniston & Justin Theroux: Jimmy Kimmel Wedding Guests!

Jennifer Aniston rocks a classy black dress while attending Jimmy Kimmel‘s wedding on Saturday (July 13) in Ojai, Calif.

The 44-year-old actress had her arm wrapped around fiance Justin Theroux, who looked handsome in a suit.

PHOTOS: Check out the latest pics of Jennifer Aniston

The wedding was also attended by 300 guests, such as Ben Affleck and wife Jennifer Garner, Matt Damon, and Emily Blunt and husband John Krasinski.

“Jimmy and Molly [McNearney] seemed ecstatic and so happy to see family and friends,” a source told Us Weekly. “Everyone stood around hugging and laughing over cocktails.”

10+ pictures inside of Jennifer Aniston and Justin Theroux attending Jimmy Kimmel‘s wedding…