News Celebrities step out in support of March For Our Lives George Clooney, Lin-Manuel Miranda, Jennifer Hudson, Billy Eichner, and more take part in rallies across the country By EW Staff Published on March 24, 2018 05:34PM EDT Trending Videos Close this video player 01 of 16 March For Our Lives Natalie Morales/Instagram On Saturday, marches took place in Washington and other cities around the world to protest gun violence. The March For Our Lives rallies brought out supporters that included celebrities like Demi Lovato, Paul McCartney, Lin-Manuel Miranda, Billy Eichner, George Clooney, and these reunited Parks and Recreation alumni. Keep clicking to see others who participated in March For Our Lives. 02 of 16 Demi Lovato JIM LO SCALZO/EPA-EFE/Shutterstock 03 of 16 George and Amal Clooney Kevin Mazur/Getty Images 04 of 16 Common and Andra Day Paul Morigi/Getty Images 05 of 16 Julianne Moore Kevin Mazur/Getty Images 06 of 16 Lin-Manuel Miranda and Halsey Kevin Mazur/Getty Images 07 of 16 Steven Spielberg and Kate Capshaw Kevin Mazur/Getty Images 08 of 16 Jimmy Fallon, Miley Cyrus and Noah Cyrus Kevin Mazur/Getty Images 09 of 16 Paul McCartney Spencer Platt/Getty Images 10 of 16 John Molner, Katie Couric, George Clooney, and Amal Clooney Kevin Mazur/Getty Images 11 of 16 Tony Goldwin Tony Goldwyn/Twitter 12 of 16 Paul Simon John Moore/Getty Images 13 of 16 Lin-Manuel Miranda and Ben Platt Chip Somodevilla/Getty Images 14 of 16 Amy Schumer Rodin Eckenroth/Getty Images 15 of 16 Ariana Grande Paul Morigi/Getty Images 16 of 16 Jennifer Hudson MANDEL NGAN/AFP/Getty Images