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Jay-Z, Beyoncé Both in Givenchy Haute Couture by Riccardo Tisci. Photo: 2014 Kevin Mazur
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Taylor Swift Dress by Oscar de la Renta. Photo: 2014 Getty Images
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Lupita Nyong'o Dress by Prada; jewels by Cartier. Photo: 2014 Kevin Mazur
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Kim Kardashian, Kanye West Both in Lanvin. Photo: 2014 Kevin Mazur
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Anna Wintour Dress by Chanel Couture. Photo: 2014 Getty Images
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Ashley Olsen, Mary-Kate Olsen Ashley Olsen wears vintage dress by Ferre, Mary-Kate Olsen wears vintage dress by Chanel.
Photo: Dimitrios Kambour... more
Ashley Olsen, Mary-Kate Olsen Ashley Olsen wears vintage dress by Ferre, Mary-Kate Olsen wears vintage dress by Chanel.
Photo: Dimitrios Kambouris/2014 Getty Images
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Rihanna Dress by Stella McCartney; shoes by Christian Louboutin; jewels by Cartier. Photo: Larry Busacca/2014 Getty Images
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Anne Hathaway Dress by Calvin Klein; shoes by Gianvito Rossi; jewels by Vhernier. Photo: 2014 Getty Images
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Gisele Bundchen, Tom Brady Dress by Balenciaga; jewels by Fred Leighton. Photo: 2014 Getty Images
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Jessica Lange, Marc Jacobs Dress by Marc Jacobs. Photo: 2014 FilmMagic
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Kristen Stewart Dress by Chanel Haute Couture. Photo: Dimitrios Kambouris/2014 Getty Images
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Sarah Jessica Parker Dress by Oscar de la Renta; jewels by Fred Leighton. Photo: 2014 Getty Images
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David Beckham, Victoria Beckham Victoria Beckham wears dress by Victoria Beckham, David Beckham wears shoes by Christian Louboutin. Photo: 2014 ... more
David Beckham, Victoria Beckham Victoria Beckham wears dress by Victoria Beckham, David Beckham wears shoes by Christian Louboutin. Photo: 2014 Getty Images
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Naomi Campbell Dress Givenchy Haute Couture by Riccardo Tisci.
Photo: 2014 Getty Images
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Karlie Kloss Dress by Oscar de la Renta. Photo: 2014 Kevin Mazur
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Amber Valletta Suit by Saint Laurent.
Photo: Kevin Mazur/2014 Kevin Mazur
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Katie Holmes Dress by Marchesa. Photo: 2014 Getty Images
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Michelle Williams Dress by Louis Vuitton. Photo: 2014 Getty Images
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Amy Adams Shoes by Christian Louboutin. Photo: 2014 Getty Images
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Rita Ora Dress by Donna Karan Atelier. Photo: 2014 Kevin Mazur
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Donatella Versace Dress by Versace. Photo: 2014 Kevin Mazur
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Nicole Richie Dress by Donna Karan Atelier; shoes by Christian Louboutin; jewels by House of Harlow.
Photo: 2014 Getty Images
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Jourdan Dunn, Toni Garrn Jourdan Dunn wears dress by Topshop. Photo: 2014 Getty Images
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Emma Stone, Andrew Garfield Emma Stone Wears dress by Thakoon; shoes by Miu Miu; clutch by Tod's; jewels by Graziela Gems and EF Collection, Andr... more
Emma Stone, Andrew Garfield Emma Stone Wears dress by Thakoon; shoes by Miu Miu; clutch by Tod's; jewels by Graziela Gems and EF Collection, Andrew Garfield wears tuxedo by Band of Outsiders; shoes by Christian Louboutin. Photo: Dimitrios Kambouris/2014 Getty Images
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Kate Upton Dress by Dolce & Gabbana. Photo: 2014 Getty Images
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Cara Delevingne Ensemble by Stella McCartney; jewels by Cartier. Photo: 2014 Getty Images
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Kirsten Dunst Dress by Rodarte; jewels by Van Cleef & Arpels. Photo: Larry Busacca/2014 Getty Images
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Lena Dunham Dress by Giambattista Valli Haute Couture; jewels by Fred Leighton. Photo: 2014 Getty Images
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Jenna Lyons Photo: Jamie McCarthy/2014 FilmMagic
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Marion Cotillard Dress by Dior Haute Couture. Photo: 2014 Getty Images
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Solange Knowles Dress by 3.1 Phillip Lim; clutch by Anya Hindmarch. Photo: 2014 Getty Images
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Joy Bryant Dress by Marchesa. Photo: 2014 Kevin Mazur
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Chloe Sevigny Dress by Kenzo; jewels by Delfina Delettrez. Photo: 2014 Getty Images
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Jessica Paré Dress by Michael Kors; jewels by Fred Leighton. Photo: 2014 Getty Images
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Kristen Wiig, Alexander Wang Dress by Balenciaga. Photo: Dimitrios Kambouris/2014 Getty Images
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Bradley Cooper Tuxedo by Tom Ford. Photo: 2014 Getty Images
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Shailene Woodley Dress by Rodarte. Photo: 2014 Getty Images
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Johnny Depp, Amber Heard Tuxedo by Ralph Lauren; dress by Giambattista Valli; jewels by Fred Leighton. Photo: Dimitrios Kambouris/2014 Getty Images
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Florence Welch Dress by Valentino. Photo: 2014 Getty Images
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Zoe Saldana Dress by Michael Kors. Photo: 2014 Getty Images
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Kate Bosworth Dress by Stella McCartney. Photo: Larry Busacca/2014 Getty Images
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Stephanie Seymour Photo: 2014 Getty Images
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Rachel McAdams Dress by Ralph Lauren; jewels by Fred Leighton and LoveGold. Photo: 2014 Getty Images
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Rashida Jones Dress by Tory Burch; clutch by Anya Hindmarch; jewels by Verdura. Photo: 2014 Getty Images
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Erykah Badu Ensemble by Givenchy. Photo: 2014 Getty Images
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Maggie Gyllenhaal Dress by Valentino; jewels by Fred Leighton. Photo: 2014 Getty Images
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Stella McCartney Jewels by Cartier. Photo: 2014 FilmMagic
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Allison Williams Dress by Oscar de la Renta; shoes by Brian Atwood; jewels by Fred Leighton. Photo: 2014 Getty Images
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Frank Ocean Tuxedo Givenchy by Riccardo Tisci; jewels by Forevermark Diamonds. Photo: 2014 Getty Images
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Charlize Theron, Sean Penn Dress by Dior; jewels by Fred Leighton. Photo: Dimitrios Kambouris/2014 Getty Images
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Margot Robbie Dress by Prada; jewels by Irene Neuwirth. Photo: 2014 Kevin Mazur
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Miguel Photo: 2014 Getty Images
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Naomi Watts Dress by Givenchy Haute Couture. Photo: 2014 Getty Images
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Claire Danes Dress by Oscar de la Renta; jewels by Fred Leighton. Photo: 2014 Getty Images
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Chrissy Teigen, John Legend Both in Ralph Lauren.
Photo: 2014 Kevin Mazur
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Anna Kendrick Dress by J. Mendel; shoes by Brian Atwood.
Photo: 2014 FilmMagic
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Emmy Rossum Dress by Carolina Herrera; jewels by Van Cleef & Arpels. Photo: 2014 Getty Images
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Kate Mara Dress by Valentino; jewels by Cartier. Photo: 2014 Getty Images
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Tom Ford Photo: Jamie McCarthy/2014 FilmMagic
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Chanel Iman, A$AP Rocky Chanel Iman wears dress by Topshop; A$AP Rocky wears Tuxedo by Topman. Photo: 2014 FilmMagic
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Hailee Steinfeld Dress by Prabal Gurung; jewels by Van Cleef & Arpels. Photo: 2014 Getty Images
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Blake Lively, Ryan Reynolds Both in Gucci. Blake Lively wears shoes by Christian Louboutin. Photo: Kevin Mazur/2014 Kevin Mazur
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Elizabeth Olsen Dress by Miu Miu; jewels by Cartier. Photo: 2014 Getty Images
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Sarah Silverman Dress by Zac Posen. Photo: 2014 Getty Images
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Edward Burns, Christy Turlington Dress by Calvin Klein. Photo: 2014 Getty Images
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Rosamund Pike Dress by Louis Vuitton; jewels by Jennifer Fisher.
Photo: 2014 Getty Images
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Donna Karan, Calvin Klein Photo: 2014 Getty Images
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Reese Witherspoon Shoes by Christian Louboutin; jewels by Fred Leighton. Photo: Larry Busacca/2014 Getty Images
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Joan Smalls, Vera Wang Dresses by Vera Wang; shoes by Ruthie Davis; jewels by GAYDAMAK. Photo: Kevin Mazur/2014 Kevin Mazur
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Karolina Kurkova Dress by Marchesa. Photo: 2014 Kevin Mazur
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Adele Exarchopoulos Photo: 2014 Getty Images
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Bee Shaffer Dress by Alexander McQueen; jewels by Fred Leighton. Photo: 2014 Kevin Mazur
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Tommy Hilfiger, Dee Hilfiger Both in Tommy Hilfiger. Photo: 2014 Getty Images
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Fei Fei Sun, Marina Rust, Tory Burch Fei Fei Sun and Tory Burch both in Tory Burch.
Photo: 2014 Kevin Mazur
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Karen Elson Dress by Zac Posen; jewels by Van Cleef & Arpels. Photo: 2014 FilmMagic
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Maggie Q Photo: 2014 Getty Images
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Benedict Cumberbatch Photo: 2014 Getty Images
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Alexa Chung Dress by Nina Ricci. Photo: 2014 FilmMagic
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Chloe Grace Moretz Dress by Chanel. Photo: Dimitrios Kambouris/2014 Getty Images
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Amanda Peet Photo: 2014 Getty Images
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Robin Dearden, Bryan Cranston Photo: 2014 Getty Images
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Zooey Deschanel Dress by Tommy Hilfiger. Photo: 2014 Getty Images
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Sofia Coppola Photo: 2014 Getty Images
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Diane Kruger Dress Jason Wu for Hugo Boss. Photo: 2014 Getty Images
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Janelle Monae Ensemble by Tadashi Shoji.
Photo: 2014 Kevin Mazur
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Valentino Garavani Photo: 2014 Getty Images
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Greta Gerwig Dress THEORY by Olivier Theyskens. Photo: 2014 Getty Images
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Olivier Theyskens, Felicity Jones Both in Theory by Olivier Theyskens, Felicity Jones wears jewels by Ana Khouri.
Photo: 2014 Getty Images
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Kendall Jenner Dress by Topshop; shoes by Tabitha Simmons. Photo: 2014 Getty Images
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Christopher Kane, Natalie Massenet Dress by Christopher Kane. Photo: BFA NYC
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Jessica Alba Dress by Diane Von Furstenberg; jewels by Ippolita. Photo: 2014 Getty Images
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Neil Patrick Harris, David Burtka Tuxedos by Thom Browne. Photo: 2014 Getty Images
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Lily Allen Dress by Chanel. Photo: 2014 Getty Images
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Hugh Jackman, Deborra-Lee Furness Photo: © Patrick McMullan
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Lake Bell Dress by Tommy Hilfiger; bag by Reece Hudson; jewels by Monique Péan. Photo: 2014 Getty Images
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Elettra Wiedman Dress by Adam Lippes. Photo: Dimitrios Kambouris/2014 Getty Images
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Gugu Mbatha-Raw, Alber Elbaz Dress by Lanvin. Photo: 2014 Getty Images
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Olivia Munn Dress and clutch by Diane Von Furstenberg; jewels by Fred Leighton and LoveGold. Photo: 2014 Kevin Mazur
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Riley Keough Pantsuit by Louis Vuitton. Photo: 2014 Getty Images
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Fabiola Beracasa Dress by Rodarte. Photo: 2014 Getty Images
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Lea Michele Dress by Altuzarra; jewels by LoveGold; clutch by Kotur. Photo: 2014 Getty Images
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Baz Luhrmann, Catherine Martin Photo: 2014 Getty Images
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Kylie Minogue Photo: 2014 Getty Images
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Zoe Kravitz Dress by Topshop. Photo: 2014 Getty Images
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Hayden Panettiere Dress by Dennis Basso; jewels by Fred Leighton. Photo: 2014 Getty Images
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Elaina Watley, Victor Cruz Photo: 2014 Getty Images
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Leighton Meester Dress by Emilio Pucci. Photo: 2014 Kevin Mazur
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Laetitia Casta Photo: 2014 Getty Images
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Ruth Wilson, Erdem Moralioglu Photo: 2014 Getty Images
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Selena Gomez Dress by Diane Von Furstenberg. Photo: 2014 Getty Images
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Lily Aldridge Dress by Michael Kors. Photo: 2014 Getty Images
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Ming Xi Photo: 2014 Getty Images
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Michelle Monaghan Dress by Altuzarra. Photo: Jamie McCarthy/2014 FilmMagic
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Julie Macklowe Dress by Honor. Photo: BFA NYC
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Ivanka Trump Dress by Oscar de la Renta. Photo: Dimitrios Kambouris/2014 Getty Images
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Ronan Farrow Photo: 2014 Getty Images
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Dree Hemingway Dress by Proenza Schouler; shoes by Rupert Sanderson.
Photo: 2014 Getty Images
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Imogen Poots Dress by Proenza Schouler. Photo: Dimitrios Kambouris/2014 Getty Images
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Colin Firth, Livia Giuggioli Photo: © Patrick McMullan
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Dianna Agron Dress by Miu Miu; jewels by AS29. Photo: 2014 Getty Images
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Georgia May Jagger Dress Mugler by David Koma; shoes by Sergio Rossi; clutch by Reece Hudson.
Photo: 2014 Kevin Mazur
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Suki Waterhouse Dress by Burberry. Photo: 2014 Getty Images
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Rosie Huntington-Whiteley Dress by Balmain. Photo: 2014 Getty Images
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Liu Wen Dress by Zac Posen. Photo: 2014 Getty Images
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Dita Von Teese, Zac Posen Dress by Zac Posen; jewels by Van Cleef & Arpels and LoveGold. Photo: 2014 Getty Images
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Katie Couric Jewels by Beladora. Photo: 2014 Getty Images
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Kenneth Cole, Emily Cole Photo: 2014 Getty Images
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Giovanna Battaglia Dress by Dolce & Gabbana. Photo: Dimitrios Kambouris/2014 Getty Images
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Gabrielle Union Dress by Prada. Photo: 2014 Getty Images
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Paul Rudd Photo: 2014 Getty Images
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Dakota Johnson Dress by Jason Wu; jewels by Jennifer Meyer.
Photo: 2014 Getty Images
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Brie Larson Ensemble by Prada; jewels by GAYDAMAK. Photo: 2014 Getty Images
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Stacy Martin Photo: 2014 Kevin Mazur
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LaLa Anthony Dress by Cushnie et Ochs. Photo: Dimitrios Kambouris/2014 Getty Images
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Sandra Lee Dress by Dara Lamb. Photo: 2014 Getty Images
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Arizona Muse Dress by Ralph & Russo couture; jewels by De Beers Diamond. Photo: 2014 Getty Images
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Aerin Lauder Dress and bag by Oscar de la Renta; jewels by Verdura. Photo: 2014 Getty Images
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Tabitha Simmons Dress by Dolce & Gabbana. Photo: 2014 Getty Images
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Eugenie Niarchos, Margherita Maccapani Missoni Both in Missoni. Photo: BFA NYC
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Douglas Booth Photo: 2014 Getty Images
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Nancy Chilton Photo: BFA NYC
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Elizabeth Cordry, Charlie Shaffer Photo: 2014 Getty Images
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Andy Cohen Photo: 2014 Getty Images
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Coco Brandolini D'Adda, Hamish Bowles, Bianca Brandolini D'Adda Photo: 2014 Getty Images
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Idina Menzel Dress by Donna Karan Atelier. Photo: 2014 Getty Images
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Selby Drummond, Andrew Bevan Clutch by Reece Hudson. Photo: BFA NYC
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Hannah Bagshawe, Eddie Redmayne Dress by Burberry. Photo: 2014 Getty Images
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Emanuel Michael, Sandrina Bencomo Photo: 2014 Getty Images