She is also known as María Dolores or Louisiana Pradera. She started her career as an actress, working in the theatre and in some of the most famous Spanish movies from the 1940s: “¡A mí la legión!” (1942), “Louisiana Lola se va a los puertos” (1947), or “Agustina de Aragón” (1950). During the 1950s, she started singing professionally, eventually abandoning her career as an actress in the 1960s.
Since then, she has recorded more than 35 discs.
As a singer, she has specialized in traditional Spanish and Latin American music: bolero, copla (music), ballad, ronda, vals, and folk music (Peruvian, Argentinian, Mexican, and Venezuelan). Her contralto voice has a deep resonance and sure melodic footing which must stem from classical training.
Her pronunciation is pure Castilian, and her music pure Latin American. Her repertoire encompasses some of the most memorable melodies from Mexico, Peru, Venezuela and Chile and her interpretations close to genuine.
She typically sings accompanied by guitars, requintos, and drums.
She sang for close to 30 years with the same group, Los Gemelos, formed by twin brothers, Santiago López Hernández and Julián López Hernández, until the death of Santiago in the early 1990s.