1972 Pilot: --John Denver (host) - ""(Take Me Home) Country Roads"" & ""Goodbye Again"" --John Denver and 'Mama' Cass Elliott - ""Leaving on a Jet Plane"" duet --Argent - ""Hold Your Head Up"" & ""Tragedy"" --Harry Chapin - ""Taxi"" --David Clayton-Thomas (singer from Blood, Sweat & Tears) - ""Yesterday's Music"" & ""Nobody Calls Me Prophet"" --The Everly Brothers - ""All I Have to Do Is Dream"" & ""Stories We Could Tell"" --The Isley Brothers - ""Pop That Thang"" --Helen Reddy - ""I Don't Know How to Love Him"" --Linda Ronstadt - ""Long Long Time"" & ""The Fast One"" --War - ""Slippin' into Darkness""