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Emma Stone Dress by Givenchy Haute Couture by Riccardo Tisci, jewels by Tiffany & Co.
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Ruth Negga Dress by Valentino, jewels by Irene Neuwirth and Gemfields, shoes by Bally.
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Naomie Harris Dress by Calvin Klein By Appointment, shoes by Calvin Klein, jewels by Bulgari.
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Isabelle Huppert Dress by Armani Prive, jewels by Repossi.
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Janelle Monáe Dress by Elie Saab Couture, jewels by Forevermark Diamonds, shoes by Brian Atwood, crown by Jennifer Behr, clutch by Jimmy C... more
Janelle Monáe Dress by Elie Saab Couture, jewels by Forevermark Diamonds, shoes by Brian Atwood, crown by Jennifer Behr, clutch by Jimmy Choo.
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Brie Larson Dress by Oscar de la Renta, jewels by Neil Lane, shoes by Aquazzura.
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Taraji P. Henson Dress by Alberta Ferretti, jewels by Nirav Modi, shoes and bag by Jimmy Choo.
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Emma Roberts Vintage dress and bag by Armani Prive, jewels by Atelier Swarovski, shoes by Armani.
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Ryan Gosling Tuxedo by Gucci, custom shirt by Anto, shoes by Christian Louboutin.
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Ava DuVernay Dress by Ashi Studio.
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Meryl Streep Dress and trousers by Elie Saab Haute Couture, shoes by Jimmy Choo, jewels by Fred Leighton, clutch by Charlotte Olympia.
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Meryl Streep Dress and trousers by Elie Saab Haute Couture, shoes by Jimmy Choo, jewels by Fred Leighton, clutch by Charlotte Olympia.
Photo: ROBYN BECK/AFP/Getty Images
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Nicole Kidman Dress and bag by Armani Prive, timepiece by Omega, jewels by Harry Winston, shoes by Stuart Weitzman.
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Nicole Kidman Dress and bag by Armani Prive, timepiece by Omega, jewels by Harry Winston, shoes by Stuart Weitzman.
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Viola Davis Dress by Armani Prive, jewels by Niwaka, bag by Bally, shoes by Stuart Weitzman.
Photo: Jeff Kravitz/FilmMagic
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Cynthia Erivo Dress by Paolo Sebastian, shoes by Laurence Dacade, bag by Judith Leiber, jewels by Tiffany & Co. and Monique Péan. Phot... more
Cynthia Erivo Dress by Paolo Sebastian, shoes by Laurence Dacade, bag by Judith Leiber, jewels by Tiffany & Co. and Monique Péan. Photo: Frazer Harrison/Getty Images
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Karlie Kloss Dress by Stella McCartney, jewels by Nirav Modi.
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Salma Hayek Dress by Alexander McQueen, jewels by Fred Leighton.
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Chris Evans Tuxedo by Salvatore Ferragamo, watch and cuff links by Montblanc, shoes by Christian Louboutin.
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Scarlett Johansson Dress, shoes, and clutch by Alaia and jewels by Fred Leighton.
Photo: VALERIE MACON/AFP/Getty Images
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Kate McKinnon Dress by Narciso Rodriguez, shoes by Stuart Weitzman, jewels by Chopard.
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Octavia Spencer Dress by Marchesa, jewels by Forevermark Diamonds, shoes by Stuart Weitzman.
Photo: VALERIE MACON/AFP/Getty Images
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Dakota Johnson Dress by Gucci, vintage jewels by Cartier.
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Miranda July Dress by Yanina Couture.
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Georgina Chapman Dress by Marchesa.
Photo: George Pimentel/FilmMagic
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Pauletta Washington, Denzel Washington Denzel wears Armani.
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Chrissy Teigen Dress by Zuhair Murad Couture, jewels by Lorraine Schwartz, shoes by Stuart Weitzman shoes, clutch by Judith Leiber.
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Chrissy Teigen Dress by Zuhair Murad Couture, jewels by Lorraine Schwartz, shoes by Stuart Weitzman shoes, clutch by Judith Leiber.
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John Legend Tuxedo by Gucci, studs and cuff links by Monique Pean.
Photo: VALERIE MACON/AFP/Getty Images
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Kirsten Dunst Dress by Dior Haute Couture, jewels by Niwaka, shoes by Christian Lacriox, clutch by Roger Vivier.
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Kirsten Dunst Dress by Dior Haute Couture, jewels by Niwaka, shoes by Christian Lacriox, clutch by Roger Vivier.
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Priyanka Chopra Dress by Ralph & Russo, jewels by Lorraine Schwartz, shoes by Jimmy Choo.
Photo: Steve Granitz/WireImage
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Casey Affleck Tuxedo by Louis Vuitton, studs and cufflinks by Montblanc.
Photo: VALERIE MACON/AFP/Getty Images
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Halle Berry Dress by Atelier Versace, jewels by Forevermark Diamonds, shoes by Vince Camuto.
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Michelle Williams Dress by Louis Vuitton.
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Viggo Mortensen Tuxedo by Dior Homme.
Photo: VALERIE MACON/AFP/Getty Images
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Alicia Vikander Dress by Louis Vuitton, jewels by Bulgari.
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Laura Dern Dress by Rodarte, shoes and clutch by Jimmy Choo, jewels by Bulgari.
Photo: Kevork Djansezian/Getty Images
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Jessica Biel Dress by Kaufmanfranco, jewels by Tiffany & Co, shoes by Stuart Weitzman.
Photo: Frazer Harrison/Getty Images
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Justin Timberlake Tuxedo by Tom Ford, studs and cuff links by Cartier, shoes by Christian Louboutin.
Photo: Frazer Harrison/Getty Images
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Charlize Theron Dress by Dior Haute Couture, shoes by Gianvito Rossi, jewels by Chopard, clutch by Dior.
Photo: Frazer Harrison/Getty Images
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Felicity Jones Dress by Dior Haute Couture., shoes by Christian Louboutin, jewels by Niwaka.
Photo: Kevork Djansezian/Getty Images
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Dev Patel, Anita Patel Dev wears a tuxedo by Burberry.
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David Oyelowo Tuxedo by Dolce & Gabbana, shoes by Christian Louboutin.
Photo: Kevork Djansezian/Getty Images
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Terrence Howard, Mira Pak Terrence wears Made to Measure La Perla tuxedo, watch by Piaget.
Photo: ANGELA WEISS/AFP/Getty Images
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Leslie Mann Dress by Zac Posen, jewels by Lorraine Schwartz, clutch and shoes by Jimmy Choo.
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Barry Jenkins Tuxedo by Dior Homme.
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Matt Damon, Luciana Barroso Luciana wears a dress, bag, and shoes by Versace and jewels by Neil Lane. Matt wears a tuxedo by Versace, timepiece b... more
Matt Damon, Luciana Barroso Luciana wears a dress, bag, and shoes by Versace and jewels by Neil Lane. Matt wears a tuxedo by Versace, timepiece by Piaget, shoes by Bruno Magli.
Photo: VALERIE MACON/AFP/Getty Images
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Jamie Dornan, Amelia Warner Jamie wears a tuxedo by Hermes, watch and cuff links by Cartier, shoes by Tod's. Amelia wears a dress by Emilia Wicks... more
Jamie Dornan, Amelia Warner Jamie wears a tuxedo by Hermes, watch and cuff links by Cartier, shoes by Tod's. Amelia wears a dress by Emilia Wickstead.
Photo: Jeff Kravitz/FilmMagic
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Olivia Hamilton, Damien Chazelle Damien wears a tuxedo by Burberry.
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Hailee Steinfeld Dress by Ralph & Russo, jewels by Neil Lane, shoes by Charlotte Olympia, clutch by Judith Lieber.
Photo: Frazer Harrison/Ge... more
Hailee Steinfeld Dress by Ralph & Russo, jewels by Neil Lane, shoes by Charlotte Olympia, clutch by Judith Lieber.
Photo: Frazer Harrison/Getty Images
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Dwayne Johnson, Lauren Hashian Photo: Jeff Kravitz/FilmMagic
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Michael J. Fox, Tracy Pollan Michael wears Zegna. Tracy wears a dress by Christian Siriano and jewels by Fred Leighton.
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Michael J. Fox, Tracy Pollan Michael wears Zegna. Tracy wears a dress by Christian Siriano and jewels by Fred Leighton.
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Jim Parsons Cufflinks and studs by David Yurman, shoes by Johnston & Murphy.
Photo: Kevin Mazur/Getty Images
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Kelly Ripa Dress by Carolina Herrera, jewels by Fred Leighton, shoes by Gianvitto Rossi.
Photo: Kevork Djansezian/Getty Images
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Ginnifer Goodwin Dress by Zuhair Murad.
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Pharrell Williams, Mimi Valdes Pharrell wears Chanel.
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Seth Rogen, Lauren Miller Seth wears a tuxedo by Todd Snyder, shoes by Crockett and Jones, bow tie by Drake's.
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Sofia Boutella Dress by Chanel Couture.
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John Cho, Kerri Higuchi Photo: Frazer Harrison/Getty Images
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Teresa Palmer Dress by Prada, shoes by Sophia Webster, bag by Edie Parker, jewels by Neil Lane.
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Mahershala Ali Tuxedo by Ermenegildo Zegna Couture, shirt studs by Monique Pean Homme.
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Susan Geston, Jeff Bridges Jeff wears cufflinks and studs by David Yurman.
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Shohreh Aghdashloo Photo: Frazer Harrison/Getty Images
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Jeremy Renner Tuxedo by BOSS.
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Busy Philipps Dress by Elizabeth Kennedy, jewels by Lorraine Schwartz.
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Judd Apatow Photo: Frazer Harrison/Getty Images
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Tarell Alvin McCraney Photo: Frazer Harrison/Getty Images
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Rosalind Ross, Mel Gibson Both wear Bulgari accessories.
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Jackie Chan Photo: Frazer Harrison/Getty Images
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Faye Dunaway Photo: Ian West/PA Images via Getty Images
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Javier Bardem Tuxedo by Gucci.
Photo: Ian West/PA Images via Getty Images
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Andrew Garfield Tuxedo by Tom Ford.
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Louise Roe, Stacy London Louise wears a dress by Pronovias. Stacy wears a custom dress by alice + olivia by Stacey Bendet.
Photo: Frazer Harriso... more
Louise Roe, Stacy London Louise wears a dress by Pronovias. Stacy wears a custom dress by alice + olivia by Stacey Bendet.
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Ryan Seacrest Photo: Frazer Harrison/Getty Images
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Robin Roberts Dress by Badgley Mischka and jewels by David Yurman.
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Riz Ahmed Tuxedo by Ermenegildo Zegna Couture, shoes by Christian Louboutin, watch and cuff links by Montblanc.
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Darby Stanchfield Dress by Georges Chakra, shoes by Jimmy Choo, jewels by Neil Lane, clutch by Rubeus Milano.
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Darby Stanchfield Dress by Georges Chakra, shoes by Jimmy Choo, jewels by Neil Lane, clutch by Rubeus Milano.
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Trudie Styler, Sting Sting wears Brioni.
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Trevante Rhodes, Alex R. Hibbert, Ashton Sanders All wear tuxedos by Calvin Klein Collection Ashton wears shoes by Doc Marten.
Photo: Frazer Har... more
Trevante Rhodes, Alex R. Hibbert, Ashton Sanders All wear tuxedos by Calvin Klein Collection Ashton wears shoes by Doc Marten.
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Giuliana Rancic Dress by Georges Chakra Couture, jewels by Forevermark Diamonds.
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Dawn Hudson Photo: Frazer Harrison/Getty Images
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Denis Villeneuve Photo: VALERIE MACON/AFP/Getty Images
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Auli'i Cravalho Dress by Rubin Singer.
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Olivia Culpo Dress by Marchesa, jewels by Neil Lane.
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Gael Garcia Bernal Tuxedo by Dior Homme.
Photo: Kevork Djansezian/Getty Images
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Andre Holland Photo: Frazer Harrison/Getty Images
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Allison Schroeder Photo: Frazer Harrison/Getty Images
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Blanca Blanco Photo: Frazer Harrison/Getty Images
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Nancy O'Dell Photo: Frazer Harrison/Getty Images
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Vince Vaughn Tuxedo by Dolce & Gabbana, shoes by Johnston & Murphy.
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Zuri Hall Photo: Frazer Harrison/Getty Images
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Rich Moore, Byron Howard, Jared Bush Photo: Frazer Harrison/Getty Images
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Mohen Leo Photo: Frazer Harrison/Getty Images
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Marcel Mettelsiefen Photo: Frazer Harrison/Getty Images
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Luke Bracey Tuxedo by Salvatore Ferragamo.
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Orlando von Einsiedel, Joanna Natasegara Photo: Frazer Harrison/Getty Images
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Spencer Averick Photo: Frazer Harrison/Getty Images
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Jharrel Jerome Photo: Frazer Harrison/Getty Images
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Marcel Mettelsiefen Photo: Frazer Harrison/Getty Images