Los 40

Los 40 (stylized as LOS40, formerly Los 40 Principales, Spanish: Los Cuarenta) is a Spanish & English Top 40-themed music radio station that broadcasts current and recent music, primarily focusing on genres such as pop, dance, electropop, Electro Latin, and Reggaeton. The brand is operated in various Spanish-speaking countries by PRISA Radio. It is recognized as the first thematic radio station in Spain, with an audience of almost three million listeners. Originating as a music show at Radio Madrid (now Cadena SER) in 1966, it transitioned into an independent radio station in 1979.