In 1967 she won Zlatý slavík award (). Her song "Prayer for Marta" became a symbol of national resistance against the occupation of Warsaw Pact troops in 1968. During the Prague Spring, she recorded over 200 SP records and one LP, "Songy a Balady" (Songs and Ballads, released in 1969), which was immediately banned from stores. In 1970, the government falsely accused her of making pornographic photographs leading to a ban from performing in the country until 1989. She was a signatory of the Charter 77 proclamation. Her first LPs after the Velvet Revolution in 1989 were a re-issue of "Songy a Balady" and a compilation of old songs, titled "Lampa".