A cabal of celebrities are expected to be in the nation’s capital on the day after Donald Trump’s inauguration for the Women’s March on Washington, an event organized to protest the president-elect’s swearing in. We now know that one of those boldface names will be Madonna after the pop icon took to Instagram to announce her attendance with an image of the Nike swoosh shaved into a woman’s pubic hair.

“Yasssssssss! Just Do it!” she wrote. Madonna also shouted out California-based Nakid Magazine and photographer Marius Sperlich, who’s behind the provocative image, which is set to appear in the magazine’s next issue. “1 Million Women's March!! Be There!! Washington D.C. Jan. 21,” Madonna added.

It’s unclear whether or not it’s actually Madonna in the photo, although Ann Coulter seems to think it is.

Joining Madonna in Washington will be Katy Perry, Cher, and Zendaya, all of whom have been staunch critics of Donald Trump. Chelsea Handler meanwhile, will lead a simultaneous march in Park City, Utah, during the Sundance Film Festival.

Nakid Magazine did not immediately return Complex's request for comment about Sperlich's photograph.