'Firework' Like You've Never Heard It of the Day

After Jodi DiPiazza was diagnosed with autism at age 2, her family tried for years to help her overcome her limitations.

Then they discovered that singing was the one thing that helped Jodi focus and build confidence.

Little did they know that Jodi would one day join Katy Perry onstage for a duet at Night of Too Many Stars, an autism benefit hosted by Jon Stewart that airs Sunday on Comedy Central.