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Jessica Chastain Dress by Prabal Gurung; jewels by Piaget.
Photo: Dimitrios Kambouris/2016 WireImage
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Beyonce Outfit by Givenchy. Photo: Theo Wargo/Getty Images
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Tilda Swinton Outfit by Haider Ackermann. Photo: Nicholas Hunt/2016 Getty Images
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Ciara Dress by Roberto Cavalli; shoes by Stuart Weitzman. Photo: Kevin Mazur/2016 Kevin Mazur
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Ashley Olsen, Elizabeth Olsen and Mary-Kate Olsen Ashley and Mary-Kate wear The Row. Photo: Kevin Mazur/2016 Kevin Mazur
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Kirsten Dunst Dress by Rodarte. Photo: Kevin Mazur/2016 Kevin Mazur
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Laverne Cox Photo: Jamie McCarthy/2016 Getty Images
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Claire Danes Dress by Calvin Klein Collection. Photo: Kevin Mazur/2016 Kevin Mazur
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Olivia Wilde Dress by Rosie Assoulin; clutch by Edie Parker. Photo: Kevin Mazur/2016 Kevin Mazur
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America Ferrera Jewels by Irene Neuwirth.
Photo: Kevin Mazur/2016 Kevin Mazur
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Naomi Campbell Dress by Brandom Maxwell; jewels by Lorraine Schwartz. Photo: Kevin Mazur/2016 Kevin Mazur
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Jennifer Hudson Dress by Prabal Gurung; shoes by Kurt Geiger London. Photo: Jamie McCarthy/2016 Getty Images
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Selma Blair Photo: Jamie McCarthy/2016 Getty Images
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Tracee Ellis Ross Photo: Jamie McCarthy/2016 Getty Images
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Emily Ratajkowski Jewels atelier Swarovski. Photo: Nicholas Hunt/2016 Getty Images
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Abbi Jacobson, Ilana Glazer Both wear dresses by Rebecca Minkoff. Photo: Jamie McCarthy/2016 Getty Images
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Adriana Lima, Gabrielle Union Adriana Lima wears outfit by Marc Jacobs; Gabrielle wears dress by Lela Rose. Photo: Nicholas Hunt/2016 Getty Imag... more
Adriana Lima, Gabrielle Union Adriana Lima wears outfit by Marc Jacobs; Gabrielle wears dress by Lela Rose. Photo: Nicholas Hunt/2016 Getty Images
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Riley Keough Photo: Nicholas Hunt/2016 Getty Images
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Karlie Kloss Dress by Rosie Assoulin; jewels atelier Swarovski. Photo: Jamie McCarthy/2016 Getty Images
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Heidi Klum Dress by Roland Mouret. Photo: Jamie McCarthy/2016 Getty Images
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Joan Smalls Dress by Givenchy Haute Couture; jewels by Eddie Borgo. Photo: Nicholas Hunt/2016 Getty Images
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Lena Dunham, Irene Neuwirth Lena wears dress by Creatures of the Wind; jewels by Irene Neuwirth; bag by Clare V. Photo: Jamie McCarthy/2016 Gett... more
Lena Dunham, Irene Neuwirth Lena wears dress by Creatures of the Wind; jewels by Irene Neuwirth; bag by Clare V. Photo: Jamie McCarthy/2016 Getty Images
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Zosia Mamet Dress by Maiyet; jewels by John Hardy. Photo: Jamie McCarthy/2016 Getty Images
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Alexa Chung Dress atelier Prabal Gurung.
Photo: Jamie McCarthy/2016 Getty Images
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Gillian Jacobs Dress by Tanya Taylor; jewels by Delfina Delettrez. Photo: Nicholas Hunt/2016 Getty Images
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Christina Ricci Photo: Dimitrios Kambouris/2016 WireImage
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Olivia Palermo Dress by Carolina Herrera. Photo: Jamie McCarthy/2016 Getty Images
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Lauren Conrad Dress LC Lauren Conrad Runway Collection for Kohl’s. Photo: Dimitrios Kambouris/2016 WireImage
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Rachel Roy Photo: Jamie McCarthy/2016 Getty Images
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Lion Babe Dress by Adam Selman. Photo: Jamie McCarthy/2016 Getty Images
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Lindsey Wixson Dress by Cynthia Rowley. Photo: Nicholas Hunt/2016 Getty Images
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Alexander Skarsgard Suit by Tom Ford. Photo: Jamie McCarthy/2016 Getty Images
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Alicia Silverstone, Christian Siriano Photo: Dimitrios Kambouris/2016 WireImage
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Julianne Hough Dress by Michael Kors Collection.
Photo: Kevin Mazur/2016 Kevin Mazur
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Jamie Chung Dress by Banana Republic. Photo: Dimitrios Kambouris/2016 WireImage
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Tim Coppens, Victor Cruz Both wear custom Tim Coppens jackets. Photo: Dimitrios Kambouris/Getty Images
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Jason Derulo Photo: Kevin Mazur/2016 Kevin Mazur
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Irina Shayk Dress by Misha Nonoo. Photo: Dimitrios Kambouris/2016 WireImage
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Jourdan Dunn Dress by Jonathan Simkhai; jewels by Eva Fehren. Photo: Nicholas Hunt/2016 Getty Images
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Sarah Paulson Dress by Altuzarra. Photo: Jamie McCarthy/2016 Getty Images
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Rachel Zoe Photo: Nicholas Hunt/2016 Getty Images
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La La Anthony Photo: Nicholas Hunt/2016 Getty Images
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Samira Wiley Photo: Jamie McCarthy/2016 Getty Images
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Stacey Bendet Eisner Photo: Dimitrios Kambouris/2016 WireImage
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Rio Uribe Photo: Jamie McCarthy/2016 Getty Images
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Alessandra Ambrosio Dress by Michael Kors Collection. Photo: Kevin Mazur/2016 Kevin Mazur
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Coco Rocha Dress by Co+Co Photo: Jamie McCarthy/2016 Getty Images
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Constance Jablonski Dress by J. Mendel. Photo: Nicholas Hunt/2016 Getty Images
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Rosie Huntington-Whiteley Dress by Michael Kors Collection.
Photo: Nicholas Hunt/2016 Getty Images
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Shanina Shaik Photo: Nicholas Hunt/2016 Getty Images
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Jasmine Tookes Jewels and clutch by Swarovski. Photo: Jamie McCarthy/2016 Getty Images
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Emily Weiss Photo: Dimitrios Kambouris/2016 WireImage
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Mia Moretti Photo: Dimitrios Kambouris/2016 WireImage
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Hari Nef Dress by Gucci. Photo: Nicholas Hunt/2016 Getty Images
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Alek Wek Photo: Kevin Mazur/2016 Kevin Mazur
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Anna Wintour Photo: Jamie McCarthy/2016 Getty Images
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Imaan Hammam Photo: Nicholas Hunt/2016 Getty Images
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Vera Wang Photo: Jamie McCarthy/2016 Getty Images
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Natane Boudreau Photo: Nicholas Hunt/2016 Getty Images
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Tommy Hilfiger, Dee Ocleppo Photo: Jamie McCarthy/2016 Getty Images
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Betsey Johnson Photo: Kevin Mazur/2016 Kevin Mazur
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Bee Shaffer Dress by Gucci; jewels by Irene Neuwirth.
Photo: Kevin Mazur/2016 Kevin Mazur
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Jacquelyn Jablonski Dress by Narcisco Rodriguez. Photo: Jamie McCarthy/2016 Getty Images
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Tory Burch Photo: Kevin Mazur/2016 Kevin Mazur
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Hanne Gaby Photo: Jamie McCarthy/2016 Getty Images
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Mara Hoffman Photo: Nicholas Hunt/2016 Getty Images
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Gia Coppola, Alessandro Michele Gia and Alessandro wear Gucci. Photo: Dimitrios Kambouris/2016 WireImage
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Rebecca Hall, Edie Parker Photo: Nicholas Hunt/2016 Getty Images
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Michael C. Hall, Morgan Macgregor Photo: Jamie McCarthy/2016 Getty Images
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Elsa Hosk Dress by Naeem Khan. Photo: Kevin Mazur/2016 Kevin Mazur
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Ana de Armas Dress by Carolina Herrera. Photo: Jamie McCarthy/Getty Images
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Daniela Lopez Photo: Jamie McCarthy/2016 Getty Images
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Anna Cleveland Photo: Jamie McCarthy/2016 Getty Images
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Martha Hunt Dress by Diane von Fürstenberg. Photo: Dimitrios Kambouris/2016 WireImage
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Calvin Klein Photo: Jamie McCarthy/2016 Getty Images
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Hilary Rhoda Dress by Monique Lhuillier. Photo: Jamie McCarthy/2016 Getty Images
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Sofia Sanchez de Betak Dress vintage; jewels by Dannijo. Photo: Nicholas Hunt/2016 Getty Images
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Georgina Chapman Dress by Marchesa. Photo: Kevin Mazur/2016 Kevin Mazur
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Sara Sampaio Dress by Diane von Furstenberg. Photo: Dimitrios Kambouris/2016 WireImage
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Sophie Kennedy Clark, Christopher Peters Jewels by Irene Neuwirth.
Photo: Nicholas Hunt/2016 Getty Images
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Nadja Swarovski Photo: Dimitrios Kambouris/2016 WireImage
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Michelle Ochs, Carly Cushnie Photo: Dimitrios Kambouris/2016 WireImage
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Michelle Monaghan Dress by Off-White; shoes by Schutz. Photo: Nicholas Hunt/2016 Getty Images
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Josephine Skriver Dress by Sachin & Babi. Photo: Dimitrios Kambouris/2016 WireImage
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Nicole Miller and Michelle Hicks Photo: Kevin Mazur/2016 Kevin Mazur
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Michelle Smith Photo: Dimitrios Kambouris/2016 WireImage
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Doutzen Kroes Dress by Calvin Klein Collection. Photo: Kevin Mazur/2016 Kevin Mazur
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Olivia Culpo Dress by Kate Spade. Photo: Kevin Mazur/2016 Kevin Mazur
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Zanna Roberts Rassie Photo: Dimitrios Kambouris/2016 WireImage
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Linda Fargo Photo: Dimitrios Kambouris/2016 WireImage
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Ryan Seacrest Photo: Jamie McCarthy/2016 Getty Images
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Steven Kolb, Diane von Furstenberg Photo: Dimitrios Kambouris/2016 WireImage
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Fern Mallis Photo: Kevin Mazur/2016 Kevin Mazur
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Christopher Peters and Shane Gabier Photo: Dimitrios Kambouris/2016 WireImage
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Norma Kamali Photo: Dimitrios Kambouris/2016 WireImage