'Au feu, les pompiers' is a traditional French nursery rhyme, a comptine sung by children for generations and still taught in preschools across France and Belgium. The lyrics describe a house on fire and the call for the firemen, sung to a simple march-like tune that children chant in rounds. It spread online through nursery-rhyme compilation videos and short-form edits, where creators repurposed its urgent yet innocent tone for comedy. Its lasting appeal comes from instant recognition: almost every French speaker knows the opening line by heart.