Katy Perry is apparently too hot for Sesame Street. We can sort of see it with the dress she's got on up in this piece.
During an April 2010 concert, Taylor Swift and her fans received a great surprise on stage: Katy Perry came out to sing!

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