She spent her childhood and youth in Asturias and then moved to Madrid to enter the music world. She did choirs for some time until 1980 that she recorded with Phillips her first single ‘El Ascensor’, which made her win the Critic Prize as a revelación in 1980.
After the single ‘El Ascensor’, she edited the following albums: Luz Casal (1982, Zafiro), Los ojos del gato (1984, Zafiro), Luz III (1985, Zafiro), Quiéreme aunque te duela (1987, Zafiro), Luz V (1989, Hispavox), Y Luz iluminó las Fallas (1993, Hispavox), Como la flor prometida (1995, Hispavox), Pequeños y grandes éxitos (1996, Hispavox), Un mar de confianza (1999, Hispavox), El bosque animado (BSO, 2001, Hispavox) and Con otra mirada (2002, Hispavox).