Katy Perry turned up the tempo with a high-energy closing set at the 2013 Jingle Bell Ball
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Best Jingle Bell Ball Moments... EVER! (2008 - 2015)
13. Katy Perry turned up the tempo with a high-energy closing set at the 2013 Jingle Bell Ball
The chart-topping star made London's O2 Arena ROAR with a selection of her biggest hits. Picture: Danny North
