Helen Reddy - ""Keep on Singing,"" ""Pretty Pretty,"" ""Love Song for Jeffrey"" & ""You and Me Against the World"" --Peter Allen - ""More Than I Like You"" --Brownsville Station - ""I'm the Leader of the Gang"" & ""Kings of the Party"" --Janis Ian - ""Applause"" & ""The Man You Are In Me"" --Gabe Kaplan (comedian) - stand-up comedy segment --Dave Loggins - ""Please Come to Boston"" & ""Sunset Woman"" --Paul Williams - ""You Know Me"" & ""Driftwood""