PHOTOS: Birthday Girl Katy Perry's Quirkiest Twitpics

As the fun-loving pop star celebrates her 27th birthday on Oct. 25, look back at some of her wackiest photos from Twitter (15 Photos)

Lindsay Hahn on Oct 21, 2011 at 12:54PM

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PHOTOS: Birthday Girl Katy Perry's Quirkiest Twitpics

Courtesy Katy Perry/

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Skeleton Scare

Boo who?! It's hard to recognize the California girl under all her crazy makeup. On Oct. 9, Katy Perry tweeted while visiting Knott's Berry Farm in Buena Park, Calif., "Be honest with me, do I look tired?" Although she may resemble the undead, she is definitely full of Halloween spirit!

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