A slew of Hollywood stars — including Emma Stone, Melissa McCarthy, Sheryl Crow and Julianne Moore — are urging gun-control supporters to reach out to Congress, and even providing instruction in a new how-to video.

The video, released Wednesday by Everytown for Gun Safety and Moms Demand Action for Gun Sense in America, comes in the wake of the deadliest mass shooting in modern U.S. history earlier this month, which killed nearly 60 people.

“The mass shooting in Las Vegas has all of us grieving, scared, and angry,” Stone says.

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“Knowing what to do about it can be confusing. Here’s one thing that can make a difference right now,” former “Saturday Night Live” star Bill Hader says.

The video message, which also includes famous faces including Elizabeth Banks, Laura Dern, Zac Posen, Gina Gershon and Moby, shows viewers how to text a number to be connected to their congressional representative.

Callers are then guided through a script proclaiming their opposition to the Sportsmen’s Heritage and Recreational Enhancement (SHARE) Act, a measure from Rep. Jeff Duncan Jeffrey (Jeff) Darren DuncanGOP lawmaker calls for Confederate portrait to be put back in Capitol Rep. Banks launches bid for RSC chairman Republicans push for help for renewable energy, fossil fuel industries MORE (R-S.C.) that would ease restrictions on the purchase of gun silencers, also known as suppressors.

Republican proponents of the legislation say silencers are primarily used by sportsmen to prevent hearing loss.

“No matter what our day jobs are, we all have a role to play in the fight for gun safety and I’m thrilled that my friends and colleagues have stepped up to encourage more people to take action,” Moore said in a statement about the video’s release.