Al Casey to Mary Hopkin in 8 Steps

1. Al Casey played guitar for Aerial Ballet
2. Aerial Ballet includes timpani played by Milt Holland
3. Milt Holland played percussion for Duit on Mon Dei
4. Duit on Mon Dei includes drums played by Ringo Starr
5. Ringo Starr appeared in a 1994 Public Service Announcement for Recording Artists, Actors, and Athletes Against Drunk Driving
6. Recording Artists, Actors, and Athletes Against Drunk Driving created a PSA featuring Paul McCartney
7. Paul McCartney produced Mary Hopkin's recording of The Puppy Song
8. The Puppy Song by Mary Hopkin features guitar played by Mary Hopkin

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