Chicago to John Lennon in 7 Steps

1. Chicago was published by Robin Hood Music Co.
2. Robin Hood Music Co. published Do You Wanna (Have Some Fun)
3. Do You Wanna (Have Some Fun) was written by Harry Nilsson
4. Harry Nilsson wrote Ambush
5. Ambush was published by EMI
6. EMI published All My Life
7. All My Life was produced by John Lennon

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