Based on the success of "American Top 40", Kasem and Don Bustany created a spinoff top 40 countdown for Watermark for Country Radio called "American Country Countdown", patterned after Kasem's program. "ACC" premiered in 1973, and was hosted by Don Bowman from its inception until April 1978. Bob Kingsley replaced Bowman and hosted until the end of 2005, after which Kix Brooks of the late country music duo Brooks & Dunn took over; Brooks has been hosting "ACC" since. Kingsley later moved to another program, "Country Top 40" (abbreviating, not coincidentally, as "CT40"), which follows the same format as "AT40" and "ACC"; Kingsley died on Thursday, October 17, 2019. Both "ACC" and "CT40" remain on the air: "ACC" on Westwood One and "CT40", now hosted by Fitz, syndicated by Hubbard Broadcasting.