"Bella ciao" (Goodbye beautiful) is an Italian protest folk song from the late 19th century, originally sung by the mondina workers in protest against the harsh working conditions in the paddy fields of Northern Italy.
It is widely assumed that the mondina song was modified and adopted as an anthem of the Italian resistance movement by the partisans who opposed nazism and fascism, and fought against the occupying forces of Nazi Germany, who were allied with the fascist and collaborationist Italian Social Republic between 1943 and 1945 during the Italian Civil War.
However, some historians argue that there is little to no evidence that Italian partisans actually sang the song.
Versions of "Bella ciao" continue to be sung worldwide as a hymn of freedom and resistance.
The Italian anti-fascist song "Bella ciao", which plays multiple times throughout the series 'Money Heist', became a summer hit across Europe in 2018. By 2018, the series was the most-watched non-English-language series and one of the most-watched series overall on Netflix, having particular resonance with viewers from Mediterranean Europe and the Latin American regions.