In Katy Perry's “Firework,” the lyric “Do you ever feel like a plastic bag, drifting through the...” is completed by “wind.”
“Firework” was released in 2010 as a single from Perry's album Teenage Dream. Perry recorded it as an empowerment song about recognizing personal value and expressing oneself despite uncertainty or social pressure.
The song was co-written by Perry, Stargate, Ester Dean and Sandy Wilhelm. Its arrangement builds from a relatively restrained verse into a large, anthemic chorus, matching the lyric's movement from self-doubt toward confidence.
The central image is deliberately unusual: an everyday plastic bag becomes a symbol of aimlessness before the song shifts to fireworks and light. The music video extends the theme through stories of people finding courage and connection in difficult moments.