In the wake of national protests against police brutality, Academy Award-nominee Samuel L. Jackson is challenging his fellow celebrities to show solidarity with the demonstrators across the nation by singing a protest song.
"All you celebrities out there who poured ice water on your head, here's a chance to do something else. I challenge all of you to sing 'We ain't gonna stop, till people are free,'" he said in a video on his Facebook page.
Celebrities and musical artists have a history of recording protest songs to express their role in social revolution. We've rounded up some of the most iconic protest songs and we want to know which one is your favorite. Take our poll and share your favorite song in the comments below.