Perry previously stood in for a pregnant Dannii Minogue during the open audition stages of the 2010 contest. The star said that she feels she is too early in her career to be judging the talents of others, but has not ruled out taking on a panel role in the future.
"I would do it but I'm just not ready for it yet. Maybe in the future, I would love to," she added.
Watch the video for Katy Perry's 'Firework' below: