 In late 2011, the "La Kalle" format has been dissolved and replaced with a simulcast of its sister station KDXX, reducing the number of formats by one in DFW's market.It was in competition with CBS Radio's Spanish Rhythmic AC station KMVK Mega 107.5 prior to the recent format change.On June 28, 2012, KESS flipped to Bilingual Top 40/CHR, billed as "Radio H2O" (H2O