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We know which box Katy Perry plans to check on Election Day.
Wearing a white dress printed like a voting ballot Wednesday at a Las Vegas campaign rally for President Barack Obama, the pop star's fashion made her presidential pick clear.
And Thursday, K.P. celebrates her birthday! "So tonight was a great night!," she tweeted very early this morning. "The PRESIDENT gave grandma and I unforgettable shout outs & now I am officially 28! Best. birthday. ever."