 The Duke family sold the stations in 1973, and the new owners separated the operations of the AM and FM, and programmed the FM station as a rock-oriented Underground format, changing the call letters to WOOO and the station's slogan to "Triple-O-97".In 1981, WOOO was sold again.The new owners increased its power to 100,000 watts and began serving the Charlotte market under the call letters WLVV and slogan "Love 97".