Argentine folk music is uniquely vast. Beyond dozens of regional dances, a national folk style emerged in the 1930s. Perón's Argentina would give rise to Nueva Canción, as artists began expressing in their music objections to political themes. Atahualpa Yupanqui, folk musician, and Mercedes Sosa would be defining figures in shaping Nueva Canción, gaining worldwide popularity in the process. The style found a huge reception in Chile, where it took off in the 1970s, and went on to influence the entirety of Latin American music. Today, Chango Spasiuk and Soledad Pastorutti have brought folk back to younger generations. León Gieco's "folk-rock" bridged the gap between Argentine folklore and Argentine rock, introducing both styles to millions overseas in successive tours.