Guests: --The Average White Band - ""Star in the Ghetto"" --The Average White Band and Ben E. King - ""Keeping It to Myself"" --Joan Baez - ""Diamonds and Rust,"" ""Time Rag,"" ""Honest Lullaby"" & ""A Heartfelt Line or Two"" --The Brothers Johnson - ""Strawberry Letter 23"" --REO Speedwagon - ""Keep Pushin'"" & ""Ridin' the Storm Out"" --Midnight Special salute to Yes