From Wikipedia, the free encyclopedia Nacha Guevara (born Clotilde Acosta, October 3, 1940) is an Argentine singer-songwriter, dancer and actress from Mar de Plata, Buenos Aires province. With poet Mario Benedetti and musician Alberto Favero, 1973 trained as a dancer and actress, she discovered by chance a career as a singer becoming a symbol around 1968 in the avant-garde movement at Instituto Di Tella in Buenos Aires, the preeminent pioneer center for visual and theater experimentation at that time.

She was a controversial cult figure in the underground movement and as a singer-songwriter in the "cafe-concert" scene, singing tunes and parodies by Boris Vian, George Brassens, Tom Lehrer, Nicolas Guillén and Argentine writers including Julio Cortázar, Jorge de la Vega, Ernesto Schoo and others. According to a 1974 interview, she adopted her stage name in the mid-1960s, "Nacha" as a family tradition, and "Guevara" due to a "problem of identity", before Che was well known.[2] At the beginning of 1970, one of her pivotal works was Nacha sings Benedetti, where she and Alberto Favero, musical partner and at that time husband, adapted some of the most famous poems of Uruguayan poet Mario Benedetti to music.