Barack Obama's Tweet to Katy Perry and vice versa is causing quite a stir.
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Katy Perry teases her music video for "Roar" with a fun little trailer.
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Katy Perry performs her new single "Roar" at the 2013 MTV Video Music Awards.
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After the release of Katy Perry's new single "Roar" on Saturday, many fans noted similarities between the track and Sara Bareilles' recent hit, "Brave."
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John Mayer's new single "Who You Love" featuring his girlfriend Katy Perry.
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Katy Perry has come out with the first song off her new album. Give "Roar" a listen now.
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Katy Perry plays a game show host on Ellen. Pretty funny.
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Katy Perry is nuts, according to a KTLA news anchor. Do you agree?
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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