Election 2012: Justin Bieber, Donald Trump, Lady Gaga and more celeb reactions

Election 2012: Justin Bieber, Donald Trump, Lady Gaga and more celeb reactions: Check out my 91-year-old grandma @ the polls for early voting in Las Vegas, NV! U got no excuse!

(NBC)

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Katy Perry

Check out my 91-year-old grandma @ the polls for early voting in Las Vegas, NV! U got no excuse!