Izvornik: Firework. By Katy Perry, Mikkel Eriksen, Tor Erik Hermansen, Sandy Wilhelm, and Ester Dean. Katy Perry. Voice sheet music.
Prijevod: Vatromet. Katy Perry, Mikkel Eriksen, Tor Erik Hermansen, Sandy Wilhelm, i Ester Dean. Klavir, Vocal, Guitar note. Glas note.