On Friday night, one day before her 43rd birthday, Jennifer Aniston was already in a festive mood.
PHOTOS: See Jen Aniston as a baby, teenager and not-yet-famous actress!
The Horrible Bosses actress turned up at Chateau Marmont in West Hollywood with love Justin Theroux and another male pal -- grabbing her favorite spot on the back patio.
PHOTOS: How Jen got her groove back last year
She and her man, 40, wore both clad in black with rocker-style leather jackets. "She looked great!" one onlooker tells Us, adding that she was "in a great mood...smiling and glowing."
Arriving past nine, Aniston, Theroux and their pal drank wine as they chatted (and laughed!) for an hour and a half. Dating for nearly a year, the duo looked more in love than ever, according to the Chateau onlooker. "They touched each other alot! He had his hands in her hair at one point."