Chris Evans, Miley Cyrus and more celebs speak out on National School Walkout Day

Students participating in the National School Walkout have Hollywood's support.

Stars like Chris Evans, Miley Cyrus and more took to social media on Wednesday to commend the students who walked out of their classrooms to advocate for gun reform one month after the Parkland, Florida, school shooting, which killed 17 people.

"The young people of this generation give me so much hope," Evans tweeted. "Are u listening @GOP? Time for gun laws to change. And for you 2A-ers, relax, no one is saying you cant own a gun, your right to ‘bear arms shall not be infringed’. Just looking for common sense reform! #NationalWalkoutDay."

Many stars have also revealed their plans to participate in the March for Our Lives demonstration in Washington, D.C., and across the country on March 24.

George and Amal Clooney donated $500,000 to the march last month, sharing that they planned to "stand side by side" with those protesting gun violence and mass shootings, and advocating for stricter gun legislation. Oprah Winfrey matched their donation.

See how more stars are recognizing National School Walkout Day in the gallery below: