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Why Ruth Negga, Lin-Manuel Miranda and Karlie Kloss are wearing blue ribbons at the Oscars

Sara M Moniuszko
USA TODAY

Forget naked-dresses, one of the biggest trends so far on the Oscars red carpet is a little more subtle: blue ribbons.

They've popped up on the designer gowns and tuxes of stars in support of the American Civil Liberties Union, a nonpartisan, nonprofit organization that aims to defend and protect individual rights and liberties.

Who has already been seen sporting the political accessory?

Loving's​ Ruth Negga

Actor Ruth Negga attends the 89th Annual Academy Awards.

“They're a huge part of our film. They helped Richard and Mildred change the Constitution of the United States and they fight for civil rights, and I’m for that,” she told USA TODAY on the red carpet. “I think that charities like that are important now and they're kind of like a watchdog of sorts, and that’s important in our society.”

Lin-Manuel Miranda (and his mom)

Luz Towns-Miranda, left, and Lin-Manuel Miranda arrive at the Oscars.

Model Karlie Kloss

Model Karlie Kloss attends the 89th Annual Academy Awards.

The model just so happens to be dating White House adviser Jared Kushner's brother, Josh.

On Saturday night, Casey Affleck also wore a ribbon to the Spirit Awards and used his acceptance speech to comment on Trump’s administration.

Casey Affleck accepts the award for best male lead for "Manchester by the Sea" at the Film Independent Spirit Awards on Saturday, Feb. 25, 2017

“The policies of this administration are abhorrent, and they will not last, and they are really un-American,” he said while accepting his award.

Star support for the ACLU predates this weekend, however.

Sarah Paulson used her SAG Awards speech to ask for ACLU donations in January. And back in October, Saturday Night Live star Sasheer Zamata parodied white privilege in a hilarious ACLU video.