Firework” is meant to be an inspiration for anyone who’s ever felt worthless or unloved. It delivers the message that everyone is beautiful and capable of leaving the world in awe when one finally shows who one really is and shoots across the sky like a firework.
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Everybody’s taking a chance … everybody’s doing something really positive and good and moving forward and being a better version of [themselves]. And that’s when they turn into the firework.
The song is Katy Perry’s favorite song that she’s ever written. In an interview at the Grammy’s, she said that she was inspired to write the song after reading a paragraph in Jack Kerouac’s novel On the Road.