John Marascalco to How Can I Be Sure of You in 7 Steps

1. John Marascalco wrote So Proud of You
2. So Proud of You was recorded by Vivian Roberts
3. Vivian Roberts recorded So Proud of You
4. So Proud of You was published by Robin Hood Music Co.
5. Robin Hood Music Co. published I Know
6. I Know was written by Harry Nilsson
7. Harry Nilsson wrote How Can I Be Sure of You

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