Probably my (now) favorite sex song of all time, Carla Thomas' "B-A-B-Y,", falls into this category. When I first heard the song as a young child, I was embarrassed to hear it though I didn't know why. When we moved to Phoenix, I only occasionally heard the song on KOOL-FM and then only late at night. I later learned that the song had peaked nationally at #14 on the Billboard pop charts and #3 on the R&B charts in the fall of 1966. Using the ARSA surveys, I learned that there were several radio stations mostly in the Rocky Mountain West that wouldn't touch the song at all. Cities where "B-A-B-Y," wasn't played and didn't show up on any of the local top-40 stations' charts included Phoenix, AZ; Salt Lake City, UT; Tucson, AZ; Boise, ID; Fargo, ND; and Chicago, IL.