Money Heist gave us two iconic songs: My Life Is Going On and Bella Ciao. While YouTube has several versions of My Life Is Going On, people cannot get enough of Bella Ciao. The Italian folk song was introduced on the show courtesy the Professor and Berlin. Today, the song has become synonymous with La Casa de Papel. With Money Heist Season 4 releasing today, it goes without saying that we are humming the popular song. Turns out, fans aren't the only ones singing the song.