Firework – A Cappella
The famous PS22 Chorus, Adiza, and Ithacappella team up to perform a huge rendition of Katy Perry's Firework.
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The famous PS22 Chorus, Adiza, and Ithacappella team up to perform a huge rendition of Katy Perry's Firework.
Greyson Chance makes a surprise appearnce with the PS22 chorus. The girls shriek once they realize who he is. He