March for Our Lives has already begun and the star-studded support for the movement is immense. Even though more than 800 cities around the world are participating in support for the campaign, the big affair is taking place just a few blocks away from the nation’s Capitol.

Popular influencers like poet Cleo Wade and Elaine Welteroth, as well as Hollywood celebs like Sarah Hyland and Willow Smith are marching during the demonstration and on the music side things are jam-packed with artists of all genres set to perform at the concert this afternoon. Among the artists names confirmed are: Lin-Manuel Miranda, Ariana Grande, Vic Mensa, Miley Cyrus, Jennifer Hudson, Common, Ben Platt, Andra Day, and Demi Lovato.

In Los Angeles, a west coast demonstration is scheduled with Amy Schumer to speak at the event. Among the other stars announced to join her are Olivia Wilde, Yara Shahidi, Connie Britton, Skai Jackson, Meg Donnelly, Ta’Rhonda Jones, Cappie Pondexter, Jacob Sartorius, Trevor Hall, Mason Cook, Bret Lockett, and more.

March For Our Lives is a campaign organized by teens who are the surviving victims of mass school shootings culminating with the Marjory Stoneman Douglas High School in Parkland after a former student opened fire killing 17 people. In addition to the march, the students have created a petition demanding elected officials pass a law to ban the sale of assault weapons, prohibit the sale of high-capacity magazines and close loopholes in background checks that allow “dangerous people who shouldn’t be allowed to purchase firearms to slip through the cracks.”