Jodi DiPiazza's duet with Katy Perry marked perhaps the most memorable moment from Comedy Central's Night Of Too Many Stars benefit for autism programs.
Jodi, a young girl living with autism, was introduced in a pre-recorded piece as the audience learned of her struggles with the disorder as well as how music helped her grow.
DiPiazza was then joined on stage by Katy Perry for a duet of her hit "Firework." What followed was a performance that instantly boosted Kleenex stock 500 percent.
Perry tweeted later that night: "I will never forget last night."
"It was the most important moment thus far of what I do."
Jon Stewart, MC for the evening, was so overcome by emotion that had to take a few seconds to recover, eliciting even more applause from the enraptured audience.
Clearly, it was a moment to remember for Jodi, Katy, Jon and everyone lucky enough to witness it. You have to love positive celebrity news stories like this one, don't you?