Los tres Diamantes were formed in the late 40s in Mexico and one of the longest-running group amongst traditional trios They also were among very few trios to achieve fame outside of Mexico. Guitarists Enrique Quezada Reyes (b. July 15, 1920) and Gustavo Prado Gutierrez (b. March 25, 1923), along with lead singer Saulo Sedano Chavira (b. July 25, 1925) were signed by RCA in 1949 and earned their first hits soon after, including "Cuando Me Vaya" and "Te Quiero, Dijiste.