Overview: Roy Clark and the whole Hee Haw gang - "Out Behind the Barn" Dale Evans - "What the World Needs Now" Buck Owens and the Buckaroos - "The Kansas City Song" Roy Rogers - "Happiness" The Hagers" - "Mercedes Benz" Buck Owens - "I Am a Rock" Roy Clark - "That's All That Matters" Roy Rogers and Dale Evans - "Have I Told You Lately That I Love You?" Buck Owens and the Buckaroos "I Ain't a Gonna Be Treated This Way"