Song: "So Long"
Artist: Firefall
Peak position on the Cashbox Singles chart: #67
Number of weeks on the Cashbox Singles chart: 6
Weekly data:
| Week ending | Rank | Title | Artist | Label |
|---|---|---|---|---|
| January 21, 1978 | 90 | So Long | Firefall | Atlantic 3452 |
| January 28, 1978 | 80 | So Long | Firefall | Atlantic 3452 |
| February 4, 1978 | 72 | So Long | Firefall | Atlantic 3452 |
| February 11, 1978 | 68 | So Long | Firefall | Atlantic 3452 |
| February 18, 1978 | 67 | So Long | Firefall | Atlantic 3452 |
| February 25, 1978 | 98 | So Long | Firefall | Atlantic 3452 |
Rankings greater than 100 are from the Cashbox 'Looking Ahead' charts.