Kate Mara took her hair to new heights when she walked the 2014 Golden Globes red carpet on Sunday!

The "House of Cards" star, who days ago just debuted her new bright blond hair, showed off a a goth-meets-glam look that was one-of-a-kind.

The 30-year-old wore a silver floor-length J. Mendel gown that revealed a generous amount of cleavage and featured space-age winged shoulders and a draped middle that gathered at the centre of her body to reveal an extra pleated layer underneath.

Aside from the eye-popping dress, the former "American Horror Story" actress stood out because of her gravity-defying hair, which was teased beyond recognition into an updo super thick a la Gretchen Wieners. (It's full of secrets!)

Mara, sister of "The Girl With the Dragon Tattoo" star Rooney Mara, is not nominated this year (although we love her as spunky Washington reporter Zoe), she showed up at the ceremony to support her "House of Cards" co-stars including Kevin Spacey and Robin Wright, who won the award for Best Actress in a TV Drama (and just confirmed her engagement to actor Ben Foster).

What do you think of Kate's vampy look?

kate mara

They're all so beautiful:

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  • Cate Blanchett

    Cate Blanchett arrives at the 71st annual Golden Globe Awards at the Beverly Hilton Hotel on Sunday, Jan. 12, 2014, in Beverly Hills, Calif. (Photo by John Shearer/Invision/AP)

  • Michael Sheen

    Michael Sheen arrives at the 71st annual Golden Globe Awards at the Beverly Hilton Hotel on Sunday, Jan. 12, 2014, in Beverly Hills, Calif. (Photo by John Shearer/Invision/AP)

  • Julia Louis-Dreyfus

    Julia Louis-Dreyfus arrives at the 71st annual Golden Globe Awards at the Beverly Hilton Hotel on Sunday, Jan. 12, 2014, in Beverly Hills, Calif. (Photo by John Shearer/Invision/AP)

  • Uma Thurman

    Uma Thurman arrives at the 71st annual Golden Globe Awards at the Beverly Hilton Hotel on Sunday, Jan. 12, 2014, in Beverly Hills, Calif. (Photo by John Shearer/Invision/AP)

  • Christoph Waltz

    Christoph Waltz arrives at the 71st annual Golden Globe Awards at the Beverly Hilton Hotel on Sunday, Jan. 12, 2014, in Beverly Hills, Calif. (Photo by John Shearer/Invision/AP)

  • Michael Fassbender

    Michael Fassbender arrives at the 71st annual Golden Globe Awards at the Beverly Hilton Hotel on Sunday, Jan. 12, 2014, in Beverly Hills, Calif. (Photo by John Shearer/Invision/AP)

  • Paula Patton

    Paula Patton arrives at the 71st annual Golden Globe Awards at the Beverly Hilton Hotel on Sunday, Jan. 12, 2014, in Beverly Hills, Calif. (Photo by John Shearer/Invision/AP)

  • Helen Mirren

    Helen Mirren arrives at the 71st annual Golden Globe Awards at the Beverly Hilton Hotel on Sunday, Jan. 12, 2014, in Beverly Hills, Calif. (Photo by John Shearer/Invision/AP)

  • Sarah Paulson

    Sarah Paulson arrives at the 71st annual Golden Globe Awards at the Beverly Hilton Hotel on Sunday, Jan. 12, 2014, in Beverly Hills, Calif. (Photo by John Shearer/Invision/AP)

  • Jessica Lange

    Jessica Lange arrives at the 71st annual Golden Globe Awards at the Beverly Hilton Hotel on Sunday, Jan. 12, 2014, in Beverly Hills, Calif. (Photo by John Shearer/Invision/AP)

  • Minnie Driver

    Minnie Driver arrives at the 71st annual Golden Globe Awards at the Beverly Hilton Hotel on Sunday, Jan. 12, 2014, in Beverly Hills, Calif. (Photo by John Shearer/Invision/AP)

  • Colin Farrell

    Colin Farrell arrives at the 71st annual Golden Globe Awards at the Beverly Hilton Hotel on Sunday, Jan. 12, 2014, in Beverly Hills, Calif. (Photo by John Shearer/Invision/AP)

  • Emma Thompson, Gaia Romilly Wise

    Emma Thompson, left, and Gaia Romilly Wise arrive at the 71st annual Golden Globe Awards at the Beverly Hilton Hotel on Sunday, Jan. 12, 2014, in Beverly Hills, Calif. (Photo by John Shearer/Invision/AP)

  • Jason Bateman, Amanda Anka

    Jason Bateman, left, and Amanda Anka arrive at the 71st annual Golden Globe Awards at the Beverly Hilton Hotel on Sunday, Jan. 12, 2014, in Beverly Hills, Calif. (Photo by John Shearer/Invision/AP)

  • Naomi Watts

    Naomi Watts arrives at the 71st annual Golden Globe Awards at the Beverly Hilton Hotel on Sunday, Jan. 12, 2014, in Beverly Hills, Calif. (Photo by John Shearer/Invision/AP)

  • Joanna Newsom, Andy Samberg

    Joanna Newsom, left, and Andy Samberg arrive at the 71st annual Golden Globe Awards at the Beverly Hilton Hotel on Sunday, Jan. 12, 2014, in Beverly Hills, Calif. (Photo by John Shearer/Invision/AP)

  • Jennifer Lawrence, Drew Barrymore

    Jennifer Lawrence, left, and Drew Barrymore arrive at the 71st annual Golden Globe Awards at the Beverly Hilton Hotel on Sunday, Jan. 12, 2014, in Beverly Hills, Calif. (Photo by John Shearer/Invision/AP)

  • Kate Mara

    Kate Mara arrives at the 71st annual Golden Globe Awards at the Beverly Hilton Hotel on Sunday, Jan. 12, 2014, in Beverly Hills, Calif. (Photo by Jordan Strauss/Invision/AP)

  • Julia Roberts

    Julia Roberts arrives at the 71st annual Golden Globe Awards at the Beverly Hilton Hotel on Sunday, Jan. 12, 2014, in Beverly Hills, Calif. (Photo by Jordan Strauss/Invision/AP)

  • Kate Mara

    Kate Mara arrives at the 71st annual Golden Globe Awards at the Beverly Hilton Hotel on Sunday, Jan. 12, 2014, in Beverly Hills, Calif. (Photo by John Shearer/Invision/AP)

  • Taylor Swift

    Taylor Swift arrives at the 71st annual Golden Globe Awards at the Beverly Hilton Hotel on Sunday, Jan. 12, 2014, in Beverly Hills, Calif. (Photo by John Shearer/Invision/AP)

  • Jennifer Lawrence, Drew Barrymore

    Jennifer Lawrence, left, and Drew Barrymore arrive at the 71st annual Golden Globe Awards at the Beverly Hilton Hotel on Sunday, Jan. 12, 2014, in Beverly Hills, Calif. (Photo by John Shearer/Invision/AP)

  • Jennifer Lawrence, Drew Barrymore

    Jennifer Lawrence, left, and Drew Barrymore arrive at the 71st annual Golden Globe Awards at the Beverly Hilton Hotel on Sunday, Jan. 12, 2014, in Beverly Hills, Calif. (Photo by John Shearer/Invision/AP)

  • Drew Barrymore

    Drew Barrymore arrives at the 71st annual Golden Globe Awards at the Beverly Hilton Hotel on Sunday, Jan. 12, 2014, in Beverly Hills, Calif. (Photo by John Shearer/Invision/AP)

  • Mila Kunis

    Mila Kunis arrives at the 71st annual Golden Globe Awards at the Beverly Hilton Hotel on Sunday, Jan. 12, 2014, in Beverly Hills, Calif. (Photo by John Shearer/Invision/AP)

  • Olivia Wilde

    Olivia Wilde arrives at the 71st annual Golden Globe Awards at the Beverly Hilton Hotel on Sunday, Jan. 12, 2014, in Beverly Hills, Calif. (Photo by John Shearer/Invision/AP)

  • Olivia Wilde

    Olivia Wilde arrives at the 71st annual Golden Globe Awards at the Beverly Hilton Hotel on Sunday, Jan. 12, 2014, in Beverly Hills, Calif. (Photo by John Shearer/Invision/AP)

  • Sandra Bullock

    Sandra Bullock arrives at the 71st annual Golden Globe Awards at the Beverly Hilton Hotel on Sunday, Jan. 12, 2014, in Beverly Hills, Calif. (Photo by John Shearer/Invision/AP)

  • Sofia Vergara

    Sofia Vergara arrives at the 71st annual Golden Globe Awards at the Beverly Hilton Hotel on Sunday, Jan. 12, 2014, in Beverly Hills, Calif. (Photo by John Shearer/Invision/AP)

  • Julianna Margulies

    Julianna Margulies arrives at the 71st annual Golden Globe Awards at the Beverly Hilton Hotel on Sunday, Jan. 12, 2014, in Beverly Hills, Calif. (Photo by John Shearer/Invision/AP)

  • Shannon Leto, Jared Leto

    Shannon Leto, left, and Jared Leto arrive at the 71st annual Golden Globe Awards at the Beverly Hilton Hotel on Sunday, Jan. 12, 2014, in Beverly Hills, Calif. (Photo by John Shearer/Invision/AP)

  • Emma Watson

    Emma Watson arrives at the 71st annual Golden Globe Awards at the Beverly Hilton Hotel on Sunday, Jan. 12, 2014, in Beverly Hills, Calif. (Photo by John Shearer/Invision/AP)

  • Emma Watson

    Emma Watson arrives at the 71st annual Golden Globe Awards at the Beverly Hilton Hotel on Sunday, Jan. 12, 2014, in Beverly Hills, Calif. (Photo by John Shearer/Invision/AP)

  • Lupita Nyong'o

    Lupita Nyong'o arrives at the 71st annual Golden Globe Awards at the Beverly Hilton Hotel on Sunday, Jan. 12, 2014, in Beverly Hills, Calif. (Photo by John Shearer/Invision/AP)

  • Kerry Washington

    Kerry Washington arrives at the 71st annual Golden Globe Awards at the Beverly Hilton Hotel on Sunday, Jan. 12, 2014, in Beverly Hills, Calif. (Photo by Jordan Strauss/Invision/AP)

  • Emma Thompson

    Emma Thompson arrives at the 71st annual Golden Globe Awards at the Beverly Hilton Hotel on Sunday, Jan. 12, 2014, in Beverly Hills, Calif. (Photo by Jordan Strauss/Invision/AP)

  • Elisabeth Moss

    Elisabeth Moss arrives at the 71st annual Golden Globe Awards at the Beverly Hilton Hotel on Sunday, Jan. 12, 2014, in Beverly Hills, Calif. (Photo by John Shearer/Invision/AP)

  • Zosia Mamet

    Zosia Mamet arrives at the 71st annual Golden Globe Awards at the Beverly Hilton Hotel on Sunday, Jan. 12, 2014, in Beverly Hills, Calif. (Photo by John Shearer/Invision/AP)

  • Jemima Kirke

    Jemima Kirke arrives at the 71st annual Golden Globe Awards at the Beverly Hilton Hotel on Sunday, Jan. 12, 2014, in Beverly Hills, Calif. (Photo by John Shearer/Invision/AP)

  • Kyra Sedgwick, Sosie Bacon, Kevin Bacon

    Kyra Sedgwick, from left, Sosie Bacon, and Kevin Bacon arrive at the 71st annual Golden Globe Awards at the Beverly Hilton Hotel on Sunday, Jan. 12, 2014, in Beverly Hills, Calif. (Photo by Jordan Strauss/Invision/AP)

  • Camila Alves

    Camila Alves arrives at the 71st annual Golden Globe Awards at the Beverly Hilton Hotel on Sunday, Jan. 12, 2014, in Beverly Hills, Calif. (Photo by Jordan Strauss/Invision/AP)

  • Cate Blanchett

    Cate Blanchett arrives at the 71st annual Golden Globe Awards at the Beverly Hilton Hotel on Sunday, Jan. 12, 2014, in Beverly Hills, Calif. (Photo by Jordan Strauss/Invision/AP)

  • Terry Crews

    Terry Crews arrives at the 71st annual Golden Globe Awards at the Beverly Hilton Hotel on Sunday, Jan. 12, 2014, in Beverly Hills, Calif. (Photo by John Shearer/Invision/AP)

  • Reese Witherspoon

    Reese Witherspoon arrives at the 71st annual Golden Globe Awards at the Beverly Hilton Hotel on Sunday, Jan. 12, 2014, in Beverly Hills, Calif. (Photo by Jordan Strauss/Invision/AP)

  • Julie Delpy

    Julie Delpy arrives at the 71st annual Golden Globe Awards at the Beverly Hilton Hotel on Sunday, Jan. 12, 2014, in Beverly Hills, Calif. (Photo by Jordan Strauss/Invision/AP)

  • Allison Williams

    Allison Williams arrives at the 71st annual Golden Globe Awards at the Beverly Hilton Hotel on Sunday, Jan. 12, 2014, in Beverly Hills, Calif. (Photo by John Shearer/Invision/AP)

  • Paula Patton

    Paula Patton arrives at the 71st annual Golden Globe Awards at the Beverly Hilton Hotel on Sunday, Jan. 12, 2014, in Beverly Hills, Calif. (Photo by Jordan Strauss/Invision/AP)

  • Lauren Parsekian, Aaron Paul

    Lauren Parsekian, left, and Aaron Paul arrive at the 71st annual Golden Globe Awards at the Beverly Hilton Hotel on Sunday, Jan. 12, 2014, in Beverly Hills, Calif. (Photo by Jordan Strauss/Invision/AP)

  • Olivia Wilde

    Olivia Wilde arrives at the 71st annual Golden Globe Awards at the Beverly Hilton Hotel on Sunday, Jan. 12, 2014, in Beverly Hills, Calif. (Photo by Jordan Strauss/Invision/AP)

  • Julie Bowen

    Julie Bowen arrives at the 71st annual Golden Globe Awards at the Beverly Hilton Hotel on Sunday, Jan. 12, 2014, in Beverly Hills, Calif. (Photo by Jordan Strauss/Invision/AP)

  • Amy Adams

    Amy Adams arrives at the 71st annual Golden Globe Awards at the Beverly Hilton Hotel on Sunday, Jan. 12, 2014, in Beverly Hills, Calif. (Photo by John Shearer/Invision/AP)