See all the best party photos here.
At her Boohoo collaboration launch party.
Bruno Frisoni of Roger Vivier wins big at the Annual Night of Stars.
RH Modern opens in the Flatiron District.
Justine and Jeff Koons celebrate the new jewelry line Gus and Al.
With Charlotte Olympia Dellal’s crew.
With Julianne Moore, Naomi Watts, and Susan Sarandon.
Or, at least, for 75 years.
Buccellati celebrates its new jewelry collection.
With the Backstreet Boys, burgers, and a couple of Jenners.
At the CFDA/Vogue Fashion Fund Los Angeles event.
The actress talks about being the face of Max Mara’s new bag—and reveals her beauty secrets—at a party in New York.
With Dakota Johnson and Ava DuVernay.
At the Americans for the Arts 2015 National Arts Awards.
For the Headstrong Project’s 3rd Annual Words of War event.
The designers celebrate their collaboration with Tumi in Brooklyn.