Los Hermanos Castro has been played on NTS shows including Como La Flor w/ Jazmin , with Con Tinta Roja first played on 31 August 2020.

Los Hermanos Castro was a Mexican close-harmony singing group.

The Castro Brothers were famous for their four-part harmony with Gualberto’s countertenor / tenor voice often singing lead. Later, their first cousin, Benito Castro entered the group as a musician and a singer, but he gradually turned into a comedian like his late father, Arturo "Bigotón" Castro. They recorded numerous albums; one of their most famous hits, "Yo sin ti", written and arranged by Arturo Castro, became a popular song throughout Mexico and South America. CBS later released a composite CD / DVD of Los Hermanos Castros singing and performing live filmed and recorded during the 1960s.

When returning to Mexico, Los Hermanos Castro decided to go their separate ways, each successfully developing a career in music. Gualberto embarked on a solo singing career, recording one album a year and appearing in numerous night clubs, theaters, movies and television; he was a long time emcee for La Carabina de Ambrosio, a popular weekly television show during the early 1980s that co-starred the magician Beto "El Boticario" and dancer Gina Montes. Castro appeared on television, theaters and nightclubs with numerous entertainers such as Judy Garland, Paul Anka, Verónica Castro (no relation) and Laura Zapata. Castro entered and won the fourth edition of the OTI Festival (Organización de Televisión Iberoamericana) award twice, once in 1975 for "La felicidad", written by Felipe Gill. He received numerous awards and honors from Mexico, Argentina, Peru, Colombia and the United States, including a lifetime award for singing and entertaining from the Accociacion Nacional de Actores (ANDA). On August 22, 2007, Gualberto celebrated 60 years as a singer and entertainer. Gualberto Castro died in June 2019.