Leroy Van Dyke, singer of the 19-week No. 1 “Walk On By,” joins the show from his home in Sedalia, Mo. The 91-year-old country music legend also cut the million-seller “The Auctioneer” in 1957, which accentuated his agriculture background and education from the University of Missouri. Van Dyke also discusses his Korean War experience and acting in the 1967 movie “What Am I Bid?” with host Jon Rawl.