Choral Choir (SSA) - Level 3 - Digital Download SKU: A0.506026 By Katy Perry. By Ali Payami, Katy Perry, Max Martin, and Savan Kotecha. Arranged by Lauren Fitzgerald. Pop. Octavo. 7 pages. Lauren Fitzgerald #3579885. Published by Lauren Fitzgerald (A0.506026). Katy Perry's powerful Olympic ballad, in lush 3-part harmony for treble voices. An excellent choice for Women's Choirs at the adult, high school, and middle school levels.