Katy Perry performs "Firework" at the 2011 TV Week Logie Awards
Katy Perry performs "Firework" live at Salute the Troops
Katy Perry performs "Firework" at BBC Radio 1's Teen Awards
Katy Perry performs "Firework" live on X Factor in the U.K.
Katy Perry performs "Teenage Dream" live on The Today Show in NYC
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