Credit: Frazer Harrison/Getty

The 89th annual Academy Awards red carpet had barely gotten started when best actress nominee Ruth Negga arrived and made a major statement. The Loving star arrived at the Oscars in a stunning red high-neck Valentino gown with long sleeves and accessorized with a powerful accessory: a light blue ACLU ribbon.

The Irish-Ethiopian actress used the red carpet to voice her support of the American Civil Liberties Union, which defends the rights and liberties given to every resident of the U.S.A. The organization confirmed that she was in fact standing with the ACLU, and she won’t be the only one wearing a blue ribbon on the carpet tonight.

Ruth Negga in Valentino Haute Couture
Credit: Frazer Harrison/Getty Images

Ruth Negga in Valentino.

Frazer Harrison/Getty Images

Hamilton creator Lin-Manuel Miranda arrived at the Academy Awards with his mother, Luz Towns-Miranda, both wearing matching pins to support the movement.

Lin-Manuel Miranda
Credit: Jeff Kravitz/FilmMagic

VIDEO: Stars Who Made a Fashion and Political Statement on The Oscars Red Carpet

Model Karlie Kloss also donned an ACLU ribbon, pinned at the hip on her white Stella McCartney gown.

Karlie Kloss
Credit: Jeff Kravitz/FilmMagic

Busy Philipps, who accompanied bestie Michelle Williams for the big night, added a ribbon to the top of her strapless sheer-paneled gown.

Credit: Kevin Mazur/Getty

Click through to our gallery for more of the stunning red carpet looks from the 2017 Oscars.