25/31
Ta'Rhonda Jones and Amy Schumer
The Empire actress, who performed a song about gun violence, posed with the comedienne during the march in Los Angeles.
26/31
Kevin Mazur/Getty Images for March For Our Lives
Julianne Moore and George Clooney
The two greet each other at the Washington D.C. march.
27/31
Kevin Mazur/Getty Images for March For Our Lives
Lin-Manuel Miranda and Halsey
The two appear at the main Washington D.C. march.
28/31
Kevin Mazur/Getty Images for March For Our Lives
Steven Spielberg and Kate Capshaw
The director and his wife appear at the Washington D.C. march.
29/31
Paul Morigi/Getty Images for March For Our Lives
Washington D.C. March
Protesters gather at the Washington D.C. march.
30/31
Rodin Eckenroth/Getty Images
Los Angeles March
People march in L.A.
31/31
John Tlumacki/The Boston Globe via Getty Images
Boston March
People march in Boston.