The driving force behind the nueva canción movement, singer Mercedes Sosa was born and raised in Tucumán, Argentina, beginning her performing career at age 15 after taking top honors in a radio station amateur competition. A rich, expressive vocalist and a gifted interpreter, Sosa was dubbed "the voice of the silent majority" for her choice of overtly political material, and alongside artists including Violeta Parra and Atahualpa Yupanqui, she spearheaded the rise of the so-called "nueva canción" movement, which heralded the emergence of protest music across Argentina and Chil...