Overview: Johnny Cash sings "One More Ride", "Hey, Porter", "Orange Blossom Special" & "Sunday Morning Coming Down". Johnny and Ray Charles duet on "I Walk the Line". Liza Minnelli sings "Lazy Bones" & "Stormy Weather". Johnny & Arlo Guthrie duet on "Oklahoma". Johnny and the Carter Family perform "Blistered". Johnny & June Carter Cash duet on "Help Me Make it Through the Night". All join in for "Peace in the Valley".