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Hundreds of thousands of children, teens, adults and even some of Hollywood's biggest stars woke up Saturday morning ready to make a change, demanding stricter gun-control laws in the wake of the 17 lives lost during the Parkland shooting at Marjory Stoneman Douglas High School just last month.
In total, there are 833 marches planned for today -- worldwide.
National Walkout Day: Hollywood Stars Praise Lone Student Protester at North Carolina School
View StoryAs swarms gather to march in places including Washington, D.C., and Los Angeles -- even cities in India, Japan and the U.K. -- many Hollywood stars are rallying behind them either in person or via social media.
Stars including Miley Cyrus, Common, Demi Lovato, Lin-Manuel Miranda, Ariana Grande and Jennifer Hudson will be performing at the rally in D.C. And celebrities including Amy Schumer, Olivia Wilde, Charlie Puth and Connie Britton will be joining the marchers in L.A.
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Eminem Targets NRA in iHeartRadio Music Awards Performance Introduced by School Shooting Survivor
View StoryMiley Cyrus, Khloe Kardashian, Selena Gomez, Jennifer Lopez, Camila Cabello, Amber Tamblyn and Kate Walsh were among the first to express their support for Saturday's march. Check back here for more updates as more celebrities rally behind the first-ever March For Our Lives.
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