Songs | Music video on Instagram: "Katy Perry instantly regretted challenging a contestant to sing her hit ‘Firework’—and for good reason! The singer hilariously reacted as the contestant absolutely nailed the performance, hitting every high note with unexpected flair. It’s a moment that’s both funny and surreal: the judge becomes the stunned audience! Song: "Firework" by Katy Perry. . . . #trending #song #music #katyperry #lyrics #liveperformance #musiclover #explorepage"