A very early Joan Baez album 'Joab Baez in San Francisco' where she does pop songs and Belafonte folky songs. She even does a version of "young Blood' in a deep, semi-male voice.
The Baroque Beatles Book, Beatles tunes made to sound like real baroque music except for the opera piece where the voices and words sound corny.
Various P D Q Bach albums where Richard Schikele discovers the only forgotten son of Johann Bach who should have remained forgotten. The music titles make bad puns of Baroque pieces and the music is corny and brilliantly hilarious.