March 01, 2011 09:24:23 GMT
Performing her hit 'Firework' with the student choir of PS 22, Perry stunned the kids and the audiences at the Kodak Theatre on Monday, February 28 when she suddenly appeared from the back screen.
Katy Perry had her own Oscars moment hours after her husband Russell Brand made his debut at the Academy Award alongside "Arthur" co-star Helen Mirren when she took to the Kodak Theatre stage as part of Oprah Winfrey's big show wrap-up special on Monday, February 28 .
The pop star took a break from her European tour and flew in to Los Angeles from Austria to join Sunday's February 27 Oscars finale performers, the student choir of PS 22, for a rendition of her hit "Firework".
Perry stunned the kids and Winfrey's Kodak Theatre audience when she stepped out onto the stage from behind a screen, dressed in a form-fitting gold dress. The rousing performance ended with images of fireworks lighting up the hi-tech stage as the kids rushed to hug and high-five Perry.