As part of a TV special to raise awareness about autism to air this Sunday (October 21) on Comedy Central, Katy Perry took to the stage with a 11-year-old autistic girl named Jodi DiPiazza to sing "Firework" at the Beacon Theater in New York.
It's a real inspiring and moving duet, and shows the amazing talent autistic kids have when given a chance.
The show, "Night of Too Many Stars: America Comes Together for Autism Programs" is hosted by Jon Stewart, and raises money for autism programs, schools and services all across the United Staes.
Other performers include Tina Fey, Seth Rogen, Amy Poehler, Stephen Colbert, Louis CK, Carly Rae Jepsen and more.
To help give autistic people the chance they deserve to reach their potential, go to http://cc.com/donate for more information.