Firework was released by Katy Perry in 2010 as a single from her album Teenage Dream, and it quickly became one of her signature songs. Built around an empowerment message, the track was widely played at celebrations, graduations and sporting events, and its chorus became instantly recognisable far beyond pop radio. In later years, short clips of the chorus circulated in motivational edits and reveal videos online, keeping the song in circulation for new audiences who may know the hook even without knowing the full track.