Teenage Dream Singer Katy Perry keeps it stylish as she attend 2nd Annual David Lynch Foundation’s ‘Change Begins Within’ Benefit Celebration held at The Metropolitan Museum of Art in New York City on Monday evening (December 13).

Teenage Dream Singer cover up with Santa Claus dress as she performs during Y-100 Jingle Ball 2010 at the BankAtlantic Center in Sunrise, Florida On Saturday evening (December 11).

Katy Perry: Z100′s Jingle Ball 2010 Performance

Teenage Dream Singer Katy Perry rock on the stage as she performs during Z100′s Jingle Ball 2010 at Madison Square Garden in New York City On Friday evening (December 10).

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Teenage Dream Singer Katy Perry looks like a snow girl as she perform at 2010 KIIS FM’s Jingle Ball held at Nokia Theater L.A. Live in Los Angeles On Sunday afternoon (December 5).

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California Gurls Singer Katy Perry will be guest star On Fox Hit Series Simpsons ( Christmas-themed Episode) Which is airs On December 5th.

Katy will play herself on “The Simpsons,” but will not be animated. Instead, she will play the role of bartender Moe’s girlfriend in a live-action scene that features the show’s cast as puppets.