WATCH: Halsey Shares Powerful Poem At Women's March

Halsey and Adele were among millions of women – and men – who took to the streets of major cities across the U.S. on Saturday to protest the policies of president Donald Trump.

Pop star Halsey took part in the Women’s March in New York City, where she read a powerful poem titled “A Story Like Mine.”

“Nobody is safe as long as she is alive,” Halsey said. “There is work to be done, there are songs to be sung, Lord knows there’s a war to be won.”

Watch Halsey’s presentation below (caution: contains explicit language):

Across the country, Adele took part in the march in L.A., where “Fight Song” singer Rachel Platten performed.

On Instagram, Adele shared a photo with Cameron Diaz and Jennifer Lawrence. “The most influential people in my life have always been women,” she wrote. “My family, my friends, my teachers, my colleagues, and my idols. I am obsessed with all the women in my life. I adore them and need them more and more every day.

“I am so grateful to be a woman, I wouldn’t change it for the world. I hope I’m not only defined by my gender though. I hope I’m defined by my input to the world, my ability to love and to have empathy. To raise my son to be a a good man alongside the good man who loves me for everything I am and am not. I want what’s best for people, I think we all do. We just can’t agree on what that is. Power to the peaceful, power to the people.”