Dame Helen Mirren addressed the crowds at the Women's March in New York yesterday
The 71-year-old looked delighted as she chanted with the crowds and declared herself a New Yorker.
Speaking on a video which was posted on Twitter, The Queen actress said: "I came on the subway, and I just followed the crowd because I knew you knew where you were all going.
"It was amazing just to be on the subway was a great experience, all I want to say is today I am a New Yorker," she continued.
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Dame Helen documented the monumental day on her own Instagram page, starting with a selfie as she marched along the streets of the Big Apple.
"This is amazing!" she captioned the snap which showed her keeping warm in a white wooly hat.
Dame Helen was joined by other famous faces including Orange Is The New Black star Taylor Schilling, Melissa McCarthy and Cynthia Nixon.
Cynthia, 50, also spoke to the crowds and stressed that women are the masters of change.
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"We are not rolling back the tarp on the progress that we have made. To every woman here who won't give up, women make the change," she said.
Dame Helen and Cynthia were two of a reported 350,000 who turned out to march in support of women's equality and human rights.
New York's march was one of 600 protests held all over the globe in solidarity with women in America.
In Los Angeles, the likes of Miley Cyrus and Jane Fonda took to the streets to show their support for women everywhere.