The station's roots began on September 9, 1990, at 106.5, as a "great oldies" station with the call letters KXGM, until 2001 when it moved to 106.7 and was sold to Entravision. However, in exchange for the move it was agreed with HBC that it would not change to a Spanish format for five years. On August 14, 2002 it launched an English-language format, Dance Top 40, as KKDL.
The "Casa" era
On February 16, 2005, it moved in a bilingual rhythmic Top 40 direction with a Hispanic rhythmic bias as KZZA, "CASA 106.7", in an attempt to target a younger 18-34 audience, mostly third-generation Hispanics. At first, its musical direction focused more along the lines of a typical rhythmic direction, but by 2006, KZZA began leaning more towards "Hurban" product and less dependent on traditional rhythmic fare, resulting in the station going "Hurban" full-time. On August 4, 2006, Liberman Broadcasting bought five radio stations including KZZA from Entravision Communications. However, after a year of 'Urban' programming and trying to challenge rival KFZO, KZZA began to shift back to a more conventional rhythmic direction. As a result of this, R&R and BDS moved KZZA back to the rhythmic panel in May 2007. With that move, Casa 106.7 was marketed under the slogan "Hip-Hop Y Mas". Of all the contemporary music stations in the Dallas-Fort Worthradio market, KZZA was the only one that featured club mix shows every night of the week, unlike their competitors, who relegated it to the weekends. On July 7, 2008 the station shifted back to Hispanic Rhythmic, leaving only Radio One'sKBFB as the only rhythmic station in Dallas/Fort Worth. Although Casa 106.7 was broadcasting on a rimshot frequency, it has created a loyal following with its English and Spanish-speaking listeners throughout their five-year run.
106.7 today
On April 6, 2009, the station again switched formats to Spanish Oldies as "La Bonita 106.7", currently running with one jock during the mornings. Ermilo Obiedo airs every morning from 7am-1pm. The rest of the programming is jockless with afternoon requests. This was due to KEGL changing formats back to active rock in 2007. On September 4, 2016, Liberman Broadcasting kept the same format but under a new name as "La Ranchera 106.7". From the time of the rebranding until 2018 and again on September 2019, KZZA is currently simulcasting on AM sister stationKZMP1540 AM.
Unlike most of the area's FM stations like competitors KLNO and KMVK, which transmit their signals from Cedar Hill, KZZA transmits its signal from an unincorporated area within the county borders of Cooke, Montague, and Wise. Therefore, KZZA's signal is much stronger in the Northwestern parts of the Dallas/Fort Worth metroplex as well as the cities of Decatur, Bowie, Gainesville, and Sherman, to as far north as Ardmore, Oklahoma, but is considerably weaker in Dallas and areas Southeast of the city itself.