Hollywood stars Chris Evans, Chadwick Boseman, Scarlett Johansson and Don Cheadle are teaming up for a PSA with March For Our Lives student activists to talk about “their first time”…at the ballot box.

“I was nervous,” Johansson says in the tongue-in-cheek video called "My First Time" released Tuesday by the advocacy groups We Stand United and March For Our Lives.

“I mean, I didn’t know how to… do it,” says “Spotlight” star Mark Ruffalo.

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“My first time everybody clapped afterwards,” David Hogg, a Parkland, Fla. high school shooting survivor and gun control activist, says to the camera.

The punchline in the get-out-the-vote push is that all the high-profile figures — including Rosario Dawson, Zoe Kravitz, and Parkland survivor Emma Gonzalez — are referring to their first time casting their ballots.

“My first time with a woman was 2016,” quips Evans, a vocal supporter of then-Democratic presidential nominee Hillary ClintonHillary Diane Rodham ClintonGOP lawmaker defends Chelsea Clinton after confrontation over New Zealand attacks Klobuchar: Race, gender should not be litmus tests for 2020 Dem nominee Kirsten Gillibrand officially announces White House run MORE. “It felt good, but it ended badly,” the “Captain America” star adds.

“My parents weren’t allowed to do it until 1965,” explains Cheadle, “so I do it every chance I get.”

A couple of participants name the location where they first used their V-for-voting card, such as a church or “the back of a firehouse.”

“The young leaders of the March for Our Lives movement are real life superheroes, showing the nation what hope and leadership look like,” Ruffalo, the co-founder of We Stand United, said in a statement. “Young people have the numbers and the power to change the country, starting this midterm election.”

"While the video may make you laugh, the message is clear," March For Our Lives co-founder Delaney Tarr said. "No matter how or where you do it, all that matters is on November 6 we need all Americans to register and vote on Election Day." 

“I was so excited afterwards,” March For Our Lives’ Ryan Deitsch says to groans in the video, “that I elected all over the place.”