On August 15, 1986, at 6 p.m., The Rolling Stones' "It's All Over Now" and a bomb noise rang out, marking the end of WAPP. The station then flipped to a CHR/Dance/Urban Contemporary format as ""The All New Hot 103, New York's Hottest Mix!"" with new call letters WQHT. The first song on "Hot" was "R.S.V.P." by Five Star. No one in the radio industry expected it, but the new format that would be labeled "Rhythmic CHR" was taking shape. WQHT was the second such station with the format, months after Emmis launched it on KPWR in Los Angeles earlier that year.