The Grease Megamix by Olivia Newton-John and John Travolta first appeared on the Israeli foreign-music chart on 6 Jan 1991, entering at #7. It peaked at #2 on 27 Jan 1991. In total it spent 6 weeks on the chart, last charting on 17 Feb 1991.
| Wk | Date | Pos |
|---|---|---|
| 1 | 6 Jan 1991 | 7 |
| 2 | 13 Jan 1991 | 3 |
| 3 | 27 Jan 1991 | 2 |
| 4 | 3 Feb 1991 | 3 |
| 5 | 10 Feb 1991 | 14 |
| 6 | 17 Feb 1991 | 28 |