Diestro picked four brilliant young singers to form the group: Elena Burke, Moraima Secada and the sisters Omara and Haydée Portuondo.
Later on she performed with Juan Formell, singing Formell's song "Talvez", a song she recorded later on with Maria Bethania.
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Portuondo had three sisters in the family; her mother came from a wealthy Spanish family, and had created a scandal by running off with and marrying a black professional baseball player, Bartolo Portuondo.
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In 1974 she recorded, with guitarist Martin Rojas, an album in which she lauds Salvador Allende and the people of Chile a year after the military coup led by General Augusto Pinochet.
Among other well known musicians he has played with are guitarist John Williams, pianist Robert Mitchell, Jools Holland, Kirsty MacColl, Ibrahim Ferrer and Omara Portuondo.