Scarlett Johansson, America Ferrera, Madonna and more speak out against Trump at Washington march

Celebrities including Scarlett Johansson, Ashley Judd, Madonna, Alicia Keys, America Ferrera, Michael Moore and Janelle Monae stirred the half-a-million-strong crowd with impassioned speeches and performances.

Scarlett Johansson addressed Trump directly, saying that she did not vote for him but she would like to be able to support him as President – if he would support her and all others who are anxiously awaiting his next move.

"Support my daughter, who may actually as a result of the appointments you have made may actually grow up in a country that is moving backwards, not forwards," she said; "and who may potentially not have the right to make choices for her body and her future that your daughter Ivanka has been privileged to have."

America Ferrera spoke about the fear being felt especially by immigrant women. "But the President is not America," she said. "We are America. And we are here to stay."

Musician and actor Janelle Monae said she was there to protest "abuse of power" and reminded the crowd to always "choose freedom over fear."

Madonna welcomed the crowd "to the rebellion, to our refusal as women to accept this new age of tyranny where not just women are in danger, but all marginalised people."

"It took us this horrific moment of darkness to wake us the f--- up," she added.

Alicia Keys performed Maya Angelou's classic protest poem 'Still I Rise' as well as her own hit 'Girl On Fire'. 

Ashley Judd's intense spoken word performance of a poem written by a 19-year-old girl, meanwhile, has set social media on fire. 

Other celebrities attended the march amongst the pink-tinted sea of women, children and men too.

Lena Dunham was there and caught up with her favourite Amys (Poehler and Schumer). 

And some of them even made their own placards; including Supergirl's Melissa Benoist, Connie Britton and Padma Lakshmi.