As per most outings, it was a family affair with sisters Khloe Kardashian and Kylie Jenner also dropping by - drenched in sequins of course.
But it was Kim and Kanye's surprise reunion with Beyoncé and Jay-Z which really stole the headlines after the couples' alleged feud.
Beyoncé stole the spotlight in a sweeping Oscar de la Renta gown complete with an ultra-high thigh split and matching gloves. Meanwhile, husband Jay-Z chose a velvet tuxedo.
Another noteworthy fashion moment came from Naomi Campbell who joined the celebrity bash in a dusty pink one-shoulder gown - the perfect accompaniment to close friend P. Diddy's metallic suit.
As if that wasn't enough celebrity news for one evening, Cardi B, Regina King, Janelle Monáe and Kate Beckinsale also made the exclusive guest list.
The birthday celebrations reportedly took place at the rapper's Los Angeles mansion with McDonalds burgers and apple pies served up on silver platters.
P. Diddy was joined by his twin daughters, Jessie James and D'Lila Star Combs, on the evening who recently celebrated their 13th birthday.
On the big night, Mary J. Blige sung 'Happy Birthday' whilst a giant cake of which spelled 'Love' was carried through the room.
It seems our invitation was lost in the post.
This article originally appeared on marie claire Australia.