By Katy Perry. By Esther
Dean, Henry Walter, Jordan
Houston, Mikkel Eriksen,
Sandy Wilhelm, Sarah Hudson,
Tor Erik Hermansen, Max
Martin, Lukasz Gottwald,
Bonnie McKee, and Katy Perry.
Arranged by Mac Huff. Pop
Choral Series. Hip-Hop, Pop,
Show Choir. Octavo. 20 pages.
Published by Hal Leonard