Helen Reddy (host) - ""Our House,"" ""God Bless the Child"" & ""I Am Woman"" --The 5th Dimension - ""Just Too Many People"" & medley of hits (""Up, Up and Away,"" ""Stone Soul Picnic,"" ""Wedding Bell Blues,"" ""One Less Bell to Answer,"" ""Aquarius"" & ""We're Going Places Together"") --Tom T. Hall - ""I Like Beer"" & ""Pamela Brown"" --Janis Ian - ""This Must Be Wrong"" & ""Jesse"" --Queen - ""Bohemian Rhapsody"" (probably a music video) --Tim Thomerson (comedy segment) --Midnight Special salute to Frank Zappa