But the behaviour was reportedly not so glamorous.
Rihanna, Justin Timberlake, Leonardo DiCaprio and Rita Ora became witnesses to a nasty display of fisticuffs, when P Diddy reportedly confronted rapper J Cole, who was ‘dancing too close’ to girlfriend Cassie and Diddy himself.
Power couple Jay and Bey attended the after party thrown by Sean Combs, and attempted to break up the row that ensued between Diddy and J-Cole.
A guest at the party told a New York paper:
‘It was mayhem. Beyoncé was yelling to stop and Jay-Z was separating people and getting people away from Bey.’
‘We were all dancing and the fight breaks out, and it happened so quickly and bottles were crashing everywhere, and everyone was screaming. People got pushed into bottles’, said another party attendee.
Another partygoer added:
‘J-Cole was saying inappropriate things to Sean Combs and his girlfriend, Cassie. Sean immediately pounced. Some pushing and shoving happened. No punches were thrown but it was a visible disturbance.’
Diddy’s drinks brand Ciroc sponsored the party, and the brawl supposedly started after multiple bottles had been consumed.
But Diddy was quick to recover and he then took to the decks to wish his girlfriend a happy birthday.
Diddy told his guests: ‘Its all cool! Ya’ll keep having fun! It’s no big deal, it’s over.’
Despite the row Beyoncé left the party all smiles, wearing a black dress that showed off her trademark curves.