By Kelsey Glein
Updated Feb 18, 2015 @ 4:01 pm
2015 Costume Designers Guild Awards
Credit: Jason LaVeris/FilmMagic (2), David Livingston/Getty Images

One of the reasons we love our favorite films and television shows is because of the amazing costuming—and the top designers were honored at the 17th annual Costume Designers Guild Awards last night. Held at the Beverly Hilton Hotel in Los Angeles, the ceremony was hosted by Emmy Rossum, and stars including January Jones, Mindy Kaling, Naomi Watts, Laura Dern, Jesse Tyler Ferguson, and Michelle Monaghan came out celebrate the costumers behind Hollywood's hottest entertainment.

"Getting to recognize the costume designers is exciting because they're such incredibly creative parts of telling a story," Rossum tells InStyle. "It's so fun for me to get to tip my hat to them and to honor them because usually we're the stars, and tonight, they get to be the stars. It's really, really cool."

And as for Mad Men star Kiernan Shipka, she was rooting for her show's own costumer Janie Bryant, who was nominated in the Outstanding Period/Fantasy Television Series category. "It's so cool because Janie and her team are excellent and brilliant people. I love them very much just as human beings," Shipka shares. "They're fantastic and also just so talented and brilliant at what they do. The amount of hard work that they put into their job is insane."

So, who earned top honors this year? The Guild handed out awards for costume design excellence in seven categories for film, television, and commercial work, with the costumers behind Into the Woods, Birdman, The Grand Budapest Hotel, Game of Thrones, and True Detective all taking home trophies.

See the full list of winners below.

Excellence in Contemporary FilmBirdman - Albert Wolsky

Excellence in Period FilmThe Grand Budapest Hotel - Milena Canonero

Excellence in Fantasy FilmInto the Woods - Colleen Atwood

Outstanding Contemporary Television SeriesTrue Detective - Jenny Eagan

Outstanding Period/Fantasy Television SeriesGame of Thrones - Michele Clapton

Outstanding Made for Television Movie or Mini SeriesAmerican Horror Story: Freak Show - Lou Eyrich

Excellence in Commercial Costume DesignArmy ‘Defy Expectations, Villagers’ - Christopher Lawrence

Lacoste Spotlight Award - Naomi Watts

Honorary Career Achievement Award - Aggie Guerard Rodgers

2015 Edith Head Award for the Advancement of the Art of Costume Design - Dr. Deborah Nadoolman Landis

Distinguished Collaborator Award - Richard Linklater

—With reporting by Carita Rizzo