KXEW signed on the air on May 10, 1963; 61 years ago (May 10, 1963).[3] It was a daytimer station, required to go off the air at night. The call sign was inspired Mexico City's most powerful radio station, 900 XEW. KXEW was owned and operated by Pan American Radio Corporation; J. Carlos McCormick was its president, CEO and majority shareholder.
The Spanish-language format featured traditional Mexican and Latin American music, with hourly newscasts as well as sports and social commentary segments throughout the day. The style of programming was an adaptation of "Color Radio" that had been borrowed from its innovator, former Tucson disc jockey, Chuck Blore. Oscar Humberto Stevens, Sr. was the first station manager, and Lorenzo Palma Cárdenas was the first program director. The directional antenna array was designed by and the station's studio, transmitter and phaser equipment installed by Oscar Leon Cuellar, who later became Arizona's first registered professional engineer with a broadcasting and communication specialization.
The station was nicknamed "Radio Fiesta." During its first years of operation, some of the radio personalities who served on its staff were Alfonso Gárfias, Chato López Quintana, Tony Castro Miranda, Arnulfo "Fito" Palma Cárdenas, Ernesto Portillo Villalobos, Enrique Villegas Grácia and Manuel Palma Parra. Oscar Stevens, Carlos McCormick, Ernesto Portillo, Lorenzo Palma, Tony Castro and Enrique Villegas had formerly worked at KEVT, Tucson's first all Spanish-language station. KXEW was the first Arizona commercial radio station license granted to a corporation/person controlled and managed by an applicant of Mexican ancestry. KXEW was sold in 1968 to a group headed by the entertainer Harry Belafonte, making it a rare Arizona station that was owned by a company headed by an African-American. It continued under the management of Ernesto Portillo.
In September 2000, KXEW was acquired by Clear Channel Communications.[4] In 2014, the company changed its name to iHeartMedia, Inc.