Jimmy Kimmel is teaming with former NASA engineer and YouTube creator Mark Rober on a three-hour livestream event to raise money for Next for Autism. Color The Spectrum: A Livestream To Support the Autism Community, presented by YouTube Originals, will air Friday, April 30 at 8pm Est / 5pm Pst on Rober’s YouTube Channel.

The star-studded, celebrity and creator-led event will feature musical performances, comedy skits, and DIY science stunts to benefit autism programs across the country. Special guests include Jon Stewart, Conan O’Brien, Chris Rock, Adam Sandler, Stephen Colbert, John Oliver, Jack Black, Andy Samberg, Paul Rudd, Maya Rudolph, MrBeast, Zach Galifianakis, Mark Hamill, Sarah Silverman, Terry Crews, Marques Brownlee, Rhett & Link, with more to be confirmed in the coming days.

Producing along with Kimmel’s team are Michelle and Robert Smigel, whose Jon Stewart-led “Night of Too Many Stars” benefits for Comedy Central and HBO inspired Rober to create his own event,...