David Cassidy to Blackbird in 8 Steps

1. David Cassidy recorded The Story Of Rock And Roll
2. The Story Of Rock And Roll was covered by Collage
3. The Collage has songs arranged by Perry Botkin
4. Perry Botkin composed the theme for Mork & Mindy
5. Mork & Mindy starred Robin Williams
6. Robin Williams sang Blow Me Down
7. Blow Me Down was written by Harry Nilsson
8. Harry Nilsson sang Blackbird

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