9. Katy turns into an actual firework
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Katy Perry's Super Bowl Performance: 12 MOST-TALKED About Moments
9. 9. Katy turns into an actual firework
Saving her biggest hit till last, Katy pulled off her THIRD costume change to transform herself into a sparkly silver star - and in case you didn't get it, that giant prop above her should've given it away! Picture: PA
