Inauguration of President Barack Obama

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Singers John Mayer and Katy Perry attend the inauguration of U.S.... News PhotoAttending,Barack Obama,Capitol Building - Washington DC,Celebrities,Ceremony,Cheerful,Full Length,Giving,Government,Horizontal,Inaugural Ball,Inauguration Into Office,John Mayer,Katy Perry,Offbeat,Politics,Pop Musician,Presidential Inauguration,Reinauguration into Office,Singer,Speech,US President,USA,Washington DCPhotographer Collection: Getty Images News 2013 Charles OmmanneyWASHINGTON, DC - JANUARY 21: Singers John Mayer and Katy Perry attend the inauguration of U.S. President Barack Obama on the West Front of the U.S. Capitol January 21, 2013 in Washington, DC. (Photo by Charles Ommanney/Reportage by Getty Images)