 The reggaeton-formatted station and the "La Kalle" (Spanish for "The Street") branding were then moved to KESS-FM and shortly after, the format was retooled to Latin Pop.The KESS call letters were first used in D/FW in the spring of 1976 when Marcos Rodriguez, Sr. father of Marcos A. Rodriguez gained control of a country station, KBUY-FM, on 93.9 FM.That station changed to 94.1 when it moved its transmitter to Cedar Hill, TX in order to avoid a spacing problem with another Dallas station.