Hard To Say I'm Sorry - Chicago
- Entered the US chart on 05 June 1982 and reached number 1. Spent 24 weeks in the charts (2 weeks at number 1).
- Entered the UK chart on 05 September 1982 and spent 15 weeks in the charts, reaching a high of number 4.
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Hard To Say I'm Sorry 
- Aquagen - Hard To Say I'm Sorry - Az Yet
(featuring Peter Cetera)