Donald Trump's presidency is bad news for so very, very many people.
All the people, basically.
But one group -- one entire gender, actually -- banded together on Saturday, January 21st, in protest.
We're speaking, of course, about the Women's March.
Women came together in Washington D.C., in Los Angeles, in Chicago, and in so many other major cities, and in some not-so-major cities as well.
It was a beautiful sight to see, and so now let's see what the celebrities did to honor the occasion!
Katy Perry, one of Hillary Clinton's biggest supporters, marched in Washington.
Scarlett Johansson spoke in support of Planned Parenthood.
Supergirl actress Melissa Benoist got in on the action with this amazing sign.
Nick Offerman, best known for playing Ron Swanson on Parks and Recreation, got himself a popular "pussy hat."
Helen Mirren looked just as classy as ever at the protest in New York.
Sex and the City star Cynthia Nixon went out to march in New York as well.