Katy Perry was one of the many celebs at the Night of Too Many Stars, which Comedy Central hosts to raise awareness for autism.

She performed, and she also had a special surprise for one of her autistic fans.

Watch as she brings little Jodi onstage to perform “Firework” - and you might want to grab some Kleenex before you start!

Jodi and Katy's performance starts at about 3:15, but you can watch before to see Jodi's story.