Justin Theroux - Justin Theroux Throws Star-studded Birthday Party For Jennifer Aniston

The former friends star turned 43 on Saturday and her partner marked the date by organising a star-studded roof party at the Chateau Marmont hotel for guests including Emily Blunt and her husband, John Krasinsky, Chelsea Handler and Jason Bateman.

A source tells Okmagazine.com, "The party was on the roof of the Chateau Marmont. I've never seen anyone have a party on the roof. They had heaters and tents, and a bar and waiters and staff. Jennifer was wearing a black dress, no sleeves, hair down, like she usually has. Justin was wearing a white long-sleeved button-down shirt with suspenders. She was not drinking at all, all night...

"Justin and Jennifer kissed and hugged and were very affectionate with each other. They were both welcoming guests in to the party together. They were just relaxing and she was opening up gifts."