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WASHINGTON, DC - DECEMBER 15: Singer Iggy Azalea performs during the Hot 99.5's Jingle Ball on December 15, 2014 in Washington, DC. (Photo by Kris Connor/FilmMagic)

WASHINGTON, DC - DECEMBER 15:  Singer Iggy Azalea performs during the Hot 99.5's Jingle Ball on December 15, 2014 in Washington, DC. (Photo by Kris Connor/FilmMagic)