The singer makes her first major red carpet appearance since February in a menswear-influenced black puff-sleeve suit, ruffled white shirt and a bow-tie – all by Dolce & Gabbana.
After arriving with Marc Jacobs's fiancé Lorenzo Martone, the fashionista strikes a solo pose in her polka-dotted one-shoulder Marc Jacobs minidress with a dramatic train, Louis Vuitton heels and a Chopard ruby ring.
The star revisits '60s high-society with her teased mane of hair, Van Cleef & Arpels jewels and wasp-waisted Marc Jacobs purple taffeta strapless dress.
Leaving daughter Honor Marie at home, the actress is a hot mama in her Jason Wu beaded bodice and cobalt blue skirt and Bruno Frisoni for Jason Wu evening sandals – not to mention the 51.08-carat Zambian emerald-and-diamond earrings, 52 carats of diamonds on her wrists, and a ring and bracelet of diamonds and pink and mauve sapphires, all from Van Cleef and Arpels.
What would the girls on the steps say? The Gossip Girl star picks one of the most avant-garde outfits of the night in an elaborate Louis Vuitton tunic with sculpted sleeves over jeweled leggings, ankle-tie shoes and Fred Leighton jewelry.
At the other end of the spectrum, Meester's costar goes for all-out sex appeal in her plunging Versace teal chiffon evening gown paired with crystal-detailed Versace sandals, Lorraine Schwartz rings and a VBH clutch.
Uniquely qualified to host the evening, the supermodel is a modern goddess in her gold lamé turban and matching one-shouldered, backless minidress – all by fellow host Marc Jacobs.
The singer matches her baby blue eyes to her turquoise Tommy Hilfiger halter gown, set off with bold metal jewelry.
With her Dolce & Gabbana-clad boyfriend Justin Bartha by her side (not pictured), the star designer shows off her toned back with a plunging white gown and Fred Leighton jewelry.
Dazzled much, no?