The artist who released the album "Al Despertar" is sometimes known as what?
Mercedes Sosa Haydée Mercedes Sosa (] ; 9 July 1935 – 4 October 2009), sometimes known as La Negra (literally: "The Black One"), was an Argentine singer who was popular throughout Latin America and many countries outside the region. She was born on Argentina's Independence Day. With her roots in Argentine folk music, Sosa became one of the preeminent exponents of nueva canción. She gave voice to songs written by many Latin American songwriters. Her music made people hail her as the "voice of the voiceless ones", and "the voice of America".
La Lupe La Lupe (born Lupe Victoria Yolí Raymond) (Santiago de Cuba, 23 December 1939 – Bronx, New York City, New York, 29 February 1992), was a Cuban singer of several musical genres, including boleros, guarachas and Latin soul in particular, known for her energetic, sometimes controversial performances.