Kendall Jenner, Madonna & Justin Bieber
Three-s a crowd! The trio celebrate at Rihanna's private post-Met event.
Vanessa Hudgens & Selena Gomez
The BFFs hug it out at Rihanna's bash.
Miley Cyrus & Sean "Diddy" Combs
The music stars coordinate in their matching black outfits.
Keri Russell & Elizabeth Banks
What's so funny? The actresses have each other in stiches at Ri-Ri's bash at Up & Down.
Solange & Alan Ferguson
The husband and wife duo are all smiles while kicking back at Ri-Ri's soiree.
Jennifer Lawrence
Work it! The Oscar winner slips into a gorgeous metallic gown for Rihanna's after party.
Robert Pattinson & Kate Hudson
LOL! The smiley stars share a laugh at the Michael Kors and iTunes After Party at The Mark Hotel.
Karlie Kloss
The supermodel arrives at the Yahoo Style after-party.
Amanda Seyfried & Justin Long
Date night! The longtime couple are caught party hopping.
Melanie Laurent & Dianna Agron
The stunning stars hit up Yahoo Style's After Party held at The Top of The Standard.
Sienna Miller
Red hot! The blond beauty srrives to the Michael Kors and iTunes soiree.
Jamie Bell, Kate Mara & Michael B. Jordan
The Fantastic Four co-stars catch up at the Yahoo Style soiree.
Beyoncé
Strike a pose! Jay Z's other half wows the crowd on the red carpet.
Hailee Steinfeld & Elizabeth Banks
Reunited! The Pitch Perfect 2 co-stars show some skin at the Michael Kors bash.
John Legend & Dwyane Wade
The stars catch up at the Rihanna after party.
Sofía Vergara & Joe Manganiello
The sizzling stars look hotter than ever at Yahoo's bash.
Gigi Hadid & Bella Hadid
The supermodel sisters make their way to some late night bashes.
Jennifer Connelly & Paul Bettany
The longtime couple strike a pose.
Allison Williams & Joe Zee
The Girls star mingles with the Yahoo Style editor at his bash.
Lady Gaga & Alexander Wang
The duo arrive at the Diamond Horseshoe for a post-Met Gala party.