Katy Perry's Firework has reportedly sold over three million copies in paid downloads, making her the first artist to ever have five songs hit that mark!

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Her previous tracks to do so were Hot N Cold, with 4,724,000; California Gurls with 4,560,000; I Kissed A Girl with 3,956,000; and Teenage Dream with 3,255,000!

A huge accomplishment! Amazing!

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