NTS aired an episode dedicated to the music of Mercedes Sosa on 25 August 2023. Mercedes Sosa has been played over 30 times on NTS, first on 23 May 2018. Mercedes Sosa's music has been featured on 18 episodes.

Mercedes Sosa (born 9 July 1935, died 4 October 2009 in Buenos Aires) was an Argentine singer inmensely popular throughout Latin America. With her roots in argentine folk music, she became one of the preeminent exponents of nueva trova (new song). Sosa is greatly admired for the depth and beauty of her contralto voice. She is respectfully nicknamed "La Negra" by her fans for her dark…