Madonna made a surprise appearance at the Women's March on Washington Saturday, speaking at the pre-march rally and telling those who are critical of the march "f--k you."

"Let’s march together through this darkness and with each step know that we are not afraid, that we are not alone, that we will not back down, that there is power in our unity and that no opposing force stands a chance in the face of true solidarity," Madonna said.

"And to our detractors that insist that this march will never add up to anything, f--k you. F--k you."

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"It is the beginning of much-needed change, change that will require sacrifice," she added.

The pop-star has been an outspoken critic of President TrumpDonald TrumpUS gives examples of possible sanctions relief to Iran GOP lawmaker demands review over FBI saying baseball shooting was 'suicide by cop' House passes bill aimed at stopping future Trump travel ban MORE, saying on his inauguration day that the U.S. had gone "as low as it could go." Madonna endorsed Democratic presidential nominee Hillary ClintonHillary Diane Rodham ClintonPelosi on power in DC: 'You have to seize it' Cuba readies for life without Castro Chelsea Clinton: Pics of Trump getting vaccinated would help him 'claim credit' MORE on the campaign trial.

“Yes, I’m angry. Yes I am outraged. Yes, I have thought an awful lot about blowing up the White House. But I know this won’t change anything. We cannot fall into despair.”

She then performed a set of songs, including “Express Yourself” and “Human Nature,” which she dedicated to “DT” — Donald Trump.