US✶99
In 1982, the station was purchased by First Media Corporation for $9.2 million.[36] On February 6, 1982, the station adopted a country music format, branded "US-99", and its call sign was changed to WUSN on February 25, 1982.[36][35][5] The station's initial promotion was that four songs would be played before any commercial break ensued, and that $25,000 would be given to the first person to call if the guarantee was not fulfilled.[37] Within the first week, two mistakes were noticed by listeners and $50,000 was given away.[37]
Lee Logan was hired as program director from KFMK in Houston, remaining with the station until 1987, when he departed for KLAC in Los Angeles.[37][38] From 1982 to 1985, Don Wade was the station's morning host.[39][40] Wade was briefly midday host on the station, before moving to WLS.[41][39] Shock-Jock Gary Dee replaced Wade as morning host in 1985, but was fired a year later.[40][42]
The station's initial country music competitors in Chicago were 670 WMAQ, 104.3 WJEZ, and 1160 WJJD, which switched to the adult standards Music of Your Life format within weeks of "US-99"'s debut.[37] In years when the station lacked major local competition, it has ranked as the nation's most-listened-to country station.[43][44]
In 1993, Infinity Broadcasting bought WUSN.[45] Infinity was acquired by the parent company of CBS in 1997.[46]
On August 8, 2016, WUSN rebranded slightly as "US✶99", dropping the .5 from their moniker and unveiling a new logo and slogan, "Chicago's Hottest Country".[47][48][49] The traditional five-pointed star, which is a common feature of the logos of American country music radio stations representing the Flag of the United States, was changed in the new version to the six-pointed variety represented in the acclaimed Flag of Chicago, with the logo coloring following suit using the flag's light blue and red.[49][47][48]
On February 2, 2017, CBS Radio announced it would merge with Entercom.[50] The merger was approved on November 9, 2017, and was consummated on the 17th.[51][52]
Awards
In 1967, WEFM won the National Federation of Music Clubs' "Special 4-Star Award" for "outstanding programming devoted to American composers".[53]
In 1993, 2006, and 2015, WUSN won the Country Music Association's Major Market Station of the Year award.[54][55][56]
In 2005, WUSN host Lisa Dent won the Country Music Association's Major Market Personality of the Year award.[57]
In 2010 and 2011, the station won Country Radio Broadcasters/Country Aircheck Awards for Station of the Year for a Major Market; the Lisa Dent and Ramblin' Ray Show for Major Market Morning Show and Marci Braun (weeknight host/MD) for Major Market MD.[58]