GGACP presents this ENCORE of a 2016 mini-episode celebrating the bands and musicians that made a single appearance on the Billboard Hot 100 charts — 55 (and 54) years ago. In this episode: Zager and Evans predict the future, Iron Butterfly garbles a rock classic, Jimmy Webb pens a hit for The Brooklyn Bridge and Gilbert reinterprets “Angel of the Morning.” PLUS: “Dark Shadows”! Strawberry Alarm Clock! Paging Mason Williams! The musical stylings of Pigmeat Markham! And Olivia Newton-John’s grandpa wins a Nobel Prize!

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