The following year, The Jim Halsey Company began "Country Music USA", a show at the Landmark that featured a different country music headliner every two to three weeks. The show was usually sold out. Roy Clark and Mel Tillis made their debuts in "Country Music USA", as did Freddy Fender. The Oak Ridge Boys made their Las Vegas debut in "Country Music USA". Leroy Van Dyke performed in the show, with Fender as his opening act. Van Dyke performed again at the Landmark later in the 1970s, with Sons of the Pioneers as his opening act. Other artists who performed in "Country Music USA" included Barbara Fairchild, Johnny Paycheck and Tommy Overstreet, as well as Jody Miller, Roy Head, and Hank Thompson. "Country Music USA" ran for two years, until 1977.