Bella Ciao began as an Italian folk song later adopted by Italian partisans during the Second World War as an anthem of resistance. It remained widely known in Italy for decades before reaching a global audience through the Spanish series Money Heist, where it became closely linked to the show's robbers and their spirit of rebellion. Since then it has spread through social media edits, football chants and protest gatherings, and it is still used because its simple chorus is easy to recognise and instantly signals defiance, unity and celebration.