Justin Theroux proposed to Jennifer Aniston on his 41st birthday and, one year later, Jennifer made sure she repaid the favour by doing something extra special - throwing him an A-list-packed party at their new $21 million Bel Air mansion.
There had been reports the party would in fact turn out to be the couple's nuptials, but that was not the case, as Jen and Justin were spotted mingling around the stunning 3.5-acre pad in casual attire. C'mon, she wouldn't get married in khaki shorts and wedges, would she?
Justin was snapped earlier in the day sunbathing on the stunning decked pool area, with sweeping views over Beverly Hills.
Stars snacked on canapés by candlelight, and no doubt were in awe at the eye-popping palatial pad.
Happy Birthday, Justin!
See the party pics below: