Barros had the opportunity to become an international opera star. She entered the and was invited to participate in "Esta Señorita Trini", which was the prelude to "La pérgola de las flores". She shared the stage with , Ana González, and many other actors, and starred as the first Carmela. Also in 1965 she had a musical group, Los Gatos, which was very successful. After the 1973 Chilean coup d'état, she went to Kenya and worked as a UN official for nine years. Then she returned to Chile and began appearing on television. Her first series was "Los títeres" (1984), which together with her role on "El amor está de moda" (1995) was her greatest pride.