Numerous speakers and musical performers took to the stage Saturday in Washington D.C., however there were thousands gathered in New York City, Los Angeles, smaller cities, smaller towns, and even in countries like Australia, where gun violence isn’t as prevalent.

The events were organized by the #NeverAgain movement, which was founded by Marjory Stoneman Douglas High School students in Parkland, Florida after a mass shooting at their school killed 17 people and injured a dozen more.

Speaking of celebrities, tens of A-listers were on hand to show their support. See some of who showed up below.