Mary Hopkin to Frogs in 7 Steps

1. Mary Hopkin played guitar for Mary Hopkin's recording of The Puppy Song
2. The Puppy Song was covered by Victoria Williams
3. Victoria Williams was born on December 23
4. December 23 is the birthday of David Gillum
5. David Gillum appeared in John and Yoko: A Love Story
6. John and Yoko: A Love Story cast includes David Gilliam
7. David Gilliam appeared in the film Frogs

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