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Fascinating Fact:

1/1/2014

Katy Perry rang in 2014 by performing at a private show in Las Vegas with boyfriend John Mayer watching from the wings. The Firework singer hit the stage at Caesars Palace's Fizz on Tuesday night (31Dec13). She and Mayer spent a few days in Sin City, checking out the opening night of Britney Spears' new show on Friday (27Dec13) and Fleetwood Mac's concert on Monday (30Dec13).

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