KXQQ-FM began On October 26, 1981, with the call letters KMZQ. KMZQ went through many changes over its 12-year run. KMZQ was known as "Q-100" and "Klassy 100." From 1995 to 2005, it was known as "Lite 100.5 FM." On June 24, 2005, at 2 PM, after playing "Leaving Las Vegas" by Sheryl Crow, KMZQ began stunting with Christmas music; 45 minutes later, the stunt shifted to movie theme songs with the sound of a Roulette wheel in between. At 3 PM, the stunt ended with voiceover artist Howard Cogan asking to "please cut the cheesy Roulette wheel sound effect". Shortly thereafter, Lite 100.5 became Jack FM, with a variety hits format. The call letters were quickly changed to KKJJ. The first song on "Jack FM" was The Flying Lizards' cover of "Money ". KMZQ-FM's call letters later found a new home on FM 99.3 in Payson, Arizona, co-owned with KMZQ 670 in Las Vegas. In July 2010, CBS Radio announced that starting August 16, 2010, KKJJ would be replaced with a simulcast of sister station KXNT and would be known as Newsradio 840 AM/100.5 FM KXNT. On August 16, at 5:03 AM, after playing "Talk Talk" by Talk Talk, KKJJ began simulcasting KXNT. The call letters were changed that day to KXNT-FM. The lineup included The Wall Street Journal Report followed by Las Vegas' Morning News" from 6a-9a and Jim Villanucci in afternoons from 3p-6p. Syndicated programs included Rush Limbaugh, Dave Ramsey, Clyde Lewis and Coast to Coast AM. On September 4, 2015, at 9 AM, after stunting for an hour with songs from multiple genres and liners redirecting KXNT listeners to 840 AM, KXNT-FM flipped to Rhythmic Hot AC as "Q100.5." Billing itself as "Today's Rhythm & All The Best Old School," the station is positioned between sister stationsKMXB and KLUC in targeting a 25-49 audience while trying to upstage another upstart that also debuted the same day, KPLV-HD2/K280DD, who launched an Urban Contemporary format billed as "Real 103.9" to serve as a flanker for KPLV and to draw listeners away from KLUC and KVEG. In addition, KXNT will also have competition against another Rhythmic AC outlet, KOAS. The first song on "Q100.5" was "This Is How We Do It" by Montell Jordan. The station changed to its current KXQQ-FM call sign on September 28, 2015. Sandee Bonita was the first radio personality to be heard on air, followed by afternoon host Bojo. On February 2, 2017, CBS Radio announced it would merge with Entercom. The merger was approved on November 9, 2017, and was consummated on the 17th.
