On Sunday, Katy Perry solemnly but revealingly tweeted, “I will never forget last night. It was the most important moment thus far of what I do.”

The evening before, Katy had joined a host of celebrities at Comedy Central’s night of Too Many Stars: America Comes Together for Autism Programs, where she posed for photographs with starstruck fans who’d waited hours outside New York City’s Beacon Theater for a glimpse of the pop superstar. But the highlight of Katy’s night had to have been her emotional duet with autistic pre-teen Jodi DiPiazza, who accompanied their vocals on piano. In the hastily-shot video below, you can hear audience members choking up in reaction.
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