[3] Over the years, several musical celebrities, such as Ramón Vargas, Fito Páez, Mercedes Sosa, Willie Colón, and Armando Manzanero have praised her qualities as a singer.

[3] In 2016, she received a gold record certification with Tania Libertad and Guadalupe Pineda for the high sales of their successful project Las Tres Grandes en Primera Fila [es], awarded by Sony Music.

In 1985 she competed with the song "El Fandango Aquí" by Marcial Alejandro [es], as the representative of Mexico at the OTI International Festival, held in Seville, Spain.

Eugenia won first place, but there was no time to celebrate, give interviews, or sign contracts, because a devastating earthquake struck Mexico City the day before the final stage of the festival.

Commemorating her 20 years as a performer, Eugenia León gave a concert at the Auditorio Nacional on November 1, 2003, accompanied by Mariachi Vargas and the Symphony Orchestra of the Americas.

In 2008, León participated as a guest artist in a Mexican special entitled Fiesta Mexicana for the US cultural television network PBS, along with Vikki Carr, Alberto Angel "El Cuervo" [es], and the mariachi group Los Camperos de Nati Cano.

She played Toña la Negra, sharing credits with Ana Claudia Talancón, Daniel Giménez Cacho, and José María de Tavira.