Katy Perry performs "Part of Me" live on American Idol. It was not the most memorable performance of her career, seeing as it was pre-recorded.
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Katy Perry and Kanye West do their thing with "E.T." Live on American Idol. Disrobe you and probe you indeed.
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Katy Perry Biography

Katy Perry, Blonde Hair Photo Katy Perry kissed a girl and she liked it, ladies and gentlemen. Or at least she wrote a song with those lyrics. The Californa... More »
Born
Birthplace
Santa Barbara, California
Full Name
Katheryn Elizabeth Hudson