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.
Katy Perry and Kanye West do their thing with "E.T." Live on American Idol. Disrobe you and probe you indeed.

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 »
Santa Barbara, California
Full Name
Katheryn Elizabeth Hudson