In Katy Perry’s song “Firework” similes and metaphors are used to enhance the songs overall theme of overcoming adversity to show ones genuine personality of creativity and strength. The song opens with the simile “Do you ever feel like a plastic bag, drifting through the wind” (FW), setting up the counterargument that the person-her audience- is sad and alone. A plastic bag is a manufactured item people throw away after one use or leave in the cabinet unwanted for months. A person being directly compared to this would feel empty and used as well as unwanted. This simile is opposite from the rest of the song, which is happy and uplifting, setting up the idea that this person needs to be filled with emotion as a plastic bag would be filled