Miranda Kerr in Proenza Schouler. (Evan Agostini / InvisionAP)
Jessica Chastain in a dress and shoes by Givenchy and jewelry by Irene Neuwirth. (Brad Barket / InvisionAP)
Kerry Washington wearing a yellow Jason Wu dress, a Lanvin bag and Monique Pean jewelry. (Evan Agostini / InvisionAP)
Designer Diane von Furstenberg. (Andrew H. Walker / Getty Images)
Bobby Cannavale and Rose Byrne go hand-in-hand. Byrne is wearing a Thakoon dress, Salvatore Ferragamo shoes, a Swarovski clutch and a Rona Pfeiffer tie cuff and diamond cigar band ring. (Andrew H. Walker / Getty Images)
Nicole Richie wearing a metallic Marc Jacobs dress and jewelry by Jennifer Meyer. (Brad Barket / InvisionAP)
Anna Wintour and Bee Shaffer. (Jamie McCarthy / Getty Images)
From left, Betsey Johnson and Lulu Johnson. (Andrew H. Walker / Getty Images)
Alessandra Ambrosio in white. (Evan Agostini / InvisionAP)
Elizabeth Olsen, left, is wearing a dress from the Row and clutch. Mary-Kate Olsen is wearing a vintage Issey Mikyake dress. (Brad Barket / InvisionAP)
Actor Tobey Maguire and wife, designer Jennifer Meyer. (Evan Agostini / InvisionAP)
DJ Mia Moretti. (Andrew H. Walker / Getty Images)
Dennis Basso and Olivia Palermo. (Andrew H. Walker / Getty Images)
Jewelry designer Irene Neuwirth, left, and Kate Mara. Mara is wearing a Dolce & Gabbana dress with Brian Atwood heels. (Andrew H. Walker / Getty Images)
Hailee Steinfeld wearing a custom Suno dress with Swarovski crystals, Jimmy Choo heels and jewelry by Jennifer Meyer. (Ilya S. Savenok / Getty Images)
Vera Wang (Andrew H. Walker / Getty Images)
Nina Garcia (Jamie McCarthy / Getty Images)
Designer Michael Kors with model Karolina Kurkova on his left and actress Cody Horn. Kurkova and Horn are both wearing Michael Kors. (Jamie McCarthy / Getty Images)
Ashley Madekwe wearing a Cushnie Et Ochs dress, heels by Christian Louboutin, a Charlotte Olympia clutch, and Effy jewelry. (Ilya S. Savenok / Getty Images)
Ellie Kemper wearing a Naeem Khan dress, Rupert Sanderson heels, Irene Neuwirth jewelry, and a Just Fab clutch. (Ilya S. Savenok / Getty Images)
Designer Rebecca Minkoff. (Ilya S. Savenok / Getty Images)
Brad Goreski (Jamie McCarthy / Getty Images)
Derek Blasberg and Karlie Kloss. (Ilya S. Savenok / Getty Images)
