Rihanna
Wow. Consider our jaws dropped. Rihanna stepped out in this glittering (not to mention nipple-baring) ensemble by Adam Selman and completed her look with Paul Morelli jewelry.
Mary-Kate & Ashley Olsen
The Olsens are up for Best Accessories Designer of the Year for their label, The Row, and the duo opted for similar-looking black ensembles.
Solange
Solange shimmered in a pewter, custom-made Calvin Klein Collection dress.
Blake Lively
Blake looked extra glitzy as she hit the red carpet in a golden Michael Kors mini dress with a scalloped hemline and a stack of bangles.
Jennifer Hudson
Looking good, Jennifer! The star worked it in this one-shoulder black Kaufmanfranco gown and a bright red lip.
Rachel Zoe
The fashion guru looked stunning in a shimmering one-shouldered gown paired with a metallic clutch.
Olivia Wilde
The actress arrived in a black fringed vintage Mollie Parnis dress, wearing her hair in romantic waves.
Lupita Nyong'o
The Oscar winner bucked the trends and opted for a multi-colored, striped top and capris Suno combo on the red carpet.
Karlie Kloss
Supermodel Karlie Kloss stepped out in a summery white Band of Outsiders maxi dress and lace-up heels.
Sophia Bush
Sophia Bush looked lovely in a cream Marchesa dress with intricate cutout detailing.
Whitney Port
Whitney Port stepped out in pin-straight hair, a bold lip and a printed Dennis Basso dress.
Heidi Klum
The supermodel showed off her summertime glow in a flowing peach Donna Karen gown.
Emmy Rossum
Emmy struck a pose in a J Mendel chartreuse and black gown with cutout detailing at the sides.
Coco Rocha
Leave it to supermodel Coco Rocha to make this bold black and white Christian Siriano look work.
Chrissy Teigen
The supermodel draped a bright orange blazer over her matching lace Rachel Roy mini dress.
Keri Russell
The Americans actress donned a black and white Rosie Assoulin dress with intricate moss green draping across the front.
Chanel Iman
Chanel Iman arrived in a curve-hugging slinky black dress by Monique Lhuillier.
Diane von Furstenberg
The legendary designer looked so cheerful in a sunny yellow dress of her own design.
Bridget Moynahan
Bridget brightened up the red carpet in an electric purple Lela Rose strapless gown.
Iman
The style icon posed in a two-toned blue Juan Carlos Obando outfit on the red carpet.
Anna Chlumsky
The Veep actress wore transluscent heels and a floral crop top outfit by Cynthia Rowley.
Rachel Roy
Rachel Roy wore a black blazer over a floral dress with a thigh-high slit.
Olivia Palermo
Olivia worked her fringed skirt on the red carpet in this all-black Rebecca Minkoff outfit.
Betsey Johnson
Designer Betsey Johnson showed her over-the-top personality in platform heels, a glittery dress and a corsage.