Kate Beckinsale arrives at the Vanity Fair Oscar Party on Sunday, Feb. 26, 2017, in Beverly Hills, Calif. (Evan Agostini/Invision/AP)
Freida Pinto arrives at the Vanity Fair Oscar Party on Sunday, Feb. 26, 2017, in Beverly Hills, Calif. (Evan Agostini/Invision/AP)
Rosie Huntington-Whiteley arrives at the Vanity Fair Oscar Party on Sunday, Feb. 26, 2017, in Beverly Hills, Calif. (Evan Agostini/Invision/AP)
Lauren Miller, left, and Seth Rogen arrive at the Vanity Fair Oscar Party on Sunday, Feb. 26, 2017, in Beverly Hills, Calif. (Evan Agostini/Invision/AP)
Joe Machota, left, and Scarlett Johansson arrive at the Vanity Fair Oscar Party on Sunday, Feb. 26, 2017, in Beverly Hills, Calif. (Evan Agostini/Invision/AP)
Malin Akerman arrives at the Vanity Fair Oscar Party on Sunday, Feb. 26, 2017, in Beverly Hills, Calif. (Evan Agostini/Invision/AP)
Michelle Monaghan arrives at the Vanity Fair Oscar Party on Monday, Feb. 27, 2017, in Beverly Hills, Calif. (Evan Agostini/Invision/AP)
Jessica Biel, left, and Justin Timberlake arrive at the Vanity Fair Oscar Party on Monday, Feb. 27, 2017, in Beverly Hills, Calif. (Evan Agostini/Invision/AP)
Chanel Iman arrives at the Vanity Fair Oscar Party on Monday, Feb. 27, 2017, in Beverly Hills, Calif. (Evan Agostini/Invision/AP)
Andrew Garfield arrives at the Vanity Fair Oscar Party on Monday, Feb. 27, 2017, in Beverly Hills, Calif. (Evan Agostini/Invision/AP)
Viola Davis arrives at the Vanity Fair Oscar Party on Monday, Feb. 27, 2017, in Beverly Hills, Calif. (Evan Agostini/Invision/AP)
Tarell Alvin McCraney arrives at the Vanity Fair Oscar Party on Monday, Feb. 27, 2017, in Beverly Hills, Calif. (Evan Agostini/Invision/AP)
Vin Diesel, left, and Paloma Jimenez arrive at the Vanity Fair Oscar Party on Monday, Feb. 27, 2017, in Beverly Hills, Calif. (Evan Agostini/Invision/AP)
Janelle Monae arrives at the Vanity Fair Oscar Party on Monday, Feb. 27, 2017, in Beverly Hills, Calif. (Evan Agostini/Invision/AP)
Karlie Kloss arrives at the Vanity Fair Oscar Party on Monday, Feb. 27, 2017, in Beverly Hills, Calif. (Evan Agostini/Invision/AP)
Jason Derulo arrives at the Vanity Fair Oscar Party on Monday, Feb. 27, 2017, in Beverly Hills, Calif. (Evan Agostini/Invision/AP)
Riz Ahmed arrives at the Vanity Fair Oscar Party on Monday, Feb. 27, 2017, in Beverly Hills, Calif. (Evan Agostini/Invision/AP)
Reese Witherspoon arrives at the Vanity Fair Oscar Party on Sunday, Feb. 26, 2017, in Beverly Hills, Calif. (Evan Agostini/Invision/AP)
Katy Perry arrives at the Vanity Fair Oscar Party on Sunday, Feb. 26, 2017, in Beverly Hills, Calif. (Evan Agostini/Invision/AP)
Jon Hamm arrives at the Vanity Fair Oscar Party on Sunday, Feb. 26, 2017, in Beverly Hills, Calif. (Evan Agostini/Invision/AP)
Anjelica Huston arrives at the Vanity Fair Oscar Party on Sunday, Feb. 26, 2017, in Beverly Hills, Calif. (Evan Agostini/Invision/AP)
Gabrielle Union arrives at the Vanity Fair Oscar Party on Sunday, Feb. 26, 2017, in Beverly Hills, Calif. (Evan Agostini/Invision/AP)
Demi Lovato arrives at the Vanity Fair Oscar Party on Sunday, Feb. 26, 2017, in Beverly Hills, Calif. (Evan Agostini/Invision/AP)
Cheryl Hines arrives at the Vanity Fair Oscar Party on Sunday, Feb. 26, 2017, in Beverly Hills, Calif. (Evan Agostini/Invision/AP)
Mary J. Blige arrives at the Vanity Fair Oscar Party on Sunday, Feb. 26, 2017, in Beverly Hills, Calif. (Evan Agostini/Invision/AP)
Andreja Pejic, left, and Catlyn Jenner arrive at the Vanity Fair Oscar Party on Sunday, Feb. 26, 2017, in Beverly Hills, Calif. (Evan Agostini/Invision/AP)
Minnie Driver arrives at the Vanity Fair Oscar Party on Sunday, Feb. 26, 2017, in Beverly Hills, Calif. (Evan Agostini/Invision/AP)
Georgia May Jagger, from left, James Jagger, and Elizabeth Jagger arrive at the Vanity Fair Oscar Party on Sunday, Feb. 26, 2017, in Beverly Hills, Calif. (Evan Agostini/Invision/AP)
Douglas Brunt, left, and Megan Kelly arrive at the Vanity Fair Oscar Party on Sunday, Feb. 26, 2017, in Beverly Hills, Calif. (Evan Agostini/Invision/AP)
Georgia May Jagger, left, and Elizabeth Jagger arrive at the Vanity Fair Oscar Party on Sunday, Feb. 26, 2017, in Beverly Hills, Calif. (Evan Agostini/Invision/AP)
Jessica Alba arrives at the Vanity Fair Oscar Party on Sunday, Feb. 26, 2017, in Beverly Hills, Calif. (Evan Agostini/Invision/AP)
Jennifer Aniston arrives at the Vanity Fair Oscar Party on Sunday, Feb. 26, 2017, in Beverly Hills, Calif. (Evan Agostini/Invision/AP)
Amy Adams arrives at the Vanity Fair Oscar Party on Sunday, Feb. 26, 2017, in Beverly Hills, Calif. (Evan Agostini/Invision/AP)
Olivia Munn arrives at the Vanity Fair Oscar Party on Sunday, Feb. 26, 2017, in Beverly Hills, Calif. (Evan Agostini/Invision/AP)
Lynn Wyatt arrives at the Vanity Fair Oscar Party on Sunday, Feb. 26, 2017, in Beverly Hills, Calif. (Evan Agostini/Invision/AP)
Rooney Mara arrives at the Vanity Fair Oscar Party on Sunday, Feb. 26, 2017, in Beverly Hills, Calif. (Evan Agostini/Invision/AP)
Sofía Vergara arrives at the Vanity Fair Oscar Party on Sunday, Feb. 26, 2017, in Beverly Hills, Calif. (Evan Agostini/Invision/AP)
Shonda Rhimes arrives at the Vanity Fair Oscar Party on Sunday, Feb. 26, 2017, in Beverly Hills, Calif. (Evan Agostini/Invision/AP)
Amanda Peet arrives at the Vanity Fair Oscar Party on Sunday, Feb. 26, 2017, in Beverly Hills, Calif. (Evan Agostini/Invision/AP)
Patricia Clarkson arrives at the Vanity Fair Oscar Party on Sunday, Feb. 26, 2017, in Beverly Hills, Calif. (Evan Agostini/Invision/AP)
Rashida Jones arrives at the Vanity Fair Oscar Party on Sunday, Feb. 26, 2017, in Beverly Hills, Calif. (Evan Agostini/Invision/AP)
Emilie Livingston, left, and Jeff Goldblum arrive at the Vanity Fair Oscar Party on Sunday, Feb. 26, 2017, in Beverly Hills, Calif. (Evan Agostini/Invision/AP)
Joe Manganiello arrives at the Vanity Fair Oscar Party on Sunday, Feb. 26, 2017, in Beverly Hills, Calif. (Evan Agostini/Invision/AP)
Ol Parker, left, and Thandie Newton arrive at the Vanity Fair Oscar Party on Sunday, Feb. 26, 2017, in Beverly Hills, Calif. (Evan Agostini/Invision/AP)
Will Arnett arrives at the Vanity Fair Oscar Party on Sunday, Feb. 26, 2017, in Beverly Hills, Calif. (Evan Agostini/Invision/AP)
Elizabeth Banks arrives at the Vanity Fair Oscar Party on Sunday, Feb. 26, 2017, in Beverly Hills, Calif. (Evan Agostini/Invision/AP)
Nick Offerman, left, and Megan Mullally arrive at the Vanity Fair Oscar Party on Sunday, Feb. 26, 2017, in Beverly Hills, Calif. (Evan Agostini/Invision/AP)
Simone Smith, left, and LL Cool J arrives at the Vanity Fair Oscar Party on Sunday, Feb. 26, 2017, in Beverly Hills, Calif. (Evan Agostini/Invision/AP)
Liev Schreiber arrives at the Vanity Fair Oscar Party on Sunday, Feb. 26, 2017, in Beverly Hills, Calif. (Evan Agostini/Invision/AP)
Allison Williams arrives at the Vanity Fair Oscar Party on Sunday, Feb. 26, 2017, in Beverly Hills, Calif. (Evan Agostini/Invision/AP)
Mindy Kaling, left, and B.J. Novak arrive at the Vanity Fair Oscar Party on Sunday, Feb. 26, 2017, in Beverly Hills, Calif. (Evan Agostini/Invision/AP)
Kate Bosworth arrives at the Vanity Fair Oscar Party on Sunday, Feb. 26, 2017, in Beverly Hills, Calif. (Evan Agostini/Invision/AP)
Diane Kruger arrives at the Vanity Fair Oscar Party on Sunday, Feb. 26, 2017, in Beverly Hills, Calif. (Evan Agostini/Invision/AP)
Sir Elton John, right, and David Furnish arrive at the 2017 Elton John AIDS Foundation Oscar Viewing Party on Sunday, Feb. 27, 2017, in West Hollywood, Calif. (Willy Sanjuan/Invision/AP)
Sharon Stone arrives at the 2017 Elton John AIDS Foundation Oscar Viewing Party on Sunday, Feb. 27, 2017, in West Hollywood, Calif. (Willy Sanjuan/Invision/AP)
Caroline Vreeland arrives at the 2017 Elton John AIDS Foundation Oscar Viewing Party on Sunday, Feb. 27, 2017, in West Hollywood, Calif. (Willy Sanjuan/Invision/AP)
David Bisbal arrives at the 2017 Elton John AIDS Foundation Oscar Viewing Party on Sunday, Feb. 27, 2017, in West Hollywood, Calif. (Willy Sanjuan/Invision/AP)
Tracee Ellis Ross attends the Mercedes-Benz x ICON MANN 2017 Academy Awards Viewing Party at Four Seasons Hotel Los Angeles at Beverly Hills on February 26, 2017 in Los Angeles. (Araya Diaz/WireImage/Getty)
Hollywood stars looked stunning at Oscars parties on Sunday, February 26.