Was discovered by Mexico's most famous songwriter, Agustín Lara. Ríos was imitating Lara's singing voice at a restaurant and he was seated in a nearby table and heard the imitation. He described her as a "slim, dark, sad-looking young woman". He told her, "The day you do 'seriously' what you are now doing for 'fun', you'll become rich".
[when the Mexican press asked her if she "had been detained as a spy" in South America in 1943] The reports were probably circulated by persons interesting in harming my good name.