In the mid-1940s, bandleaders devised a dance for a new form of music known as mambo music, taking its name from the 1938 song Mambo 1980 song a charanga which had popularized a new form of danzon known as danzon mambo. This was a syncopated, less rigid form of the danzón which allowed the dancers to more freely express themselves during the last section, known as the mambo section. From Havana Pérez Prado moved his music to Mexico, where his music and the dance were adopted. The original mambo dance was characterized by freedom and complicated foot-steps.