Unforgettable by Natalie Cole and Nat King Cole first appeared on the Israeli foreign-music chart on 18 Aug 1991, entering at #29. It peaked at #29 on 18 Aug 1991. In total it spent 1 week on the chart, last charting on 18 Aug 1991.
| Wk | Date | Pos |
|---|---|---|
| 1 | 18 Aug 1991 | 29 |