Song: "MacArthur Park"
Artist: Donna Summer
Peak position on the Cashbox Singles chart: #1
Number of weeks on the Cashbox Singles chart: 21
Weekly data:
| Week ending | Rank | Title | Artist | Label |
|---|---|---|---|---|
| September 9, 1978 | 85 | MacArthur Park | Donna Summer | Casablanca 939 |
| September 16, 1978 | 64 | MacArthur Park | Donna Summer | Casablanca 939 |
| September 23, 1978 | 49 | MacArthur Park | Donna Summer | Casablanca 939 |
| September 30, 1978 | 34 | MacArthur Park | Donna Summer | Casablanca 939 |
| October 7, 1978 | 17 | MacArthur Park | Donna Summer | Casablanca 939 |
| October 14, 1978 | 11 | MacArthur Park | Donna Summer | Casablanca 939 |
| October 21, 1978 | 7 | MacArthur Park | Donna Summer | Casablanca 939 |
| October 28, 1978 | 3 | MacArthur Park | Donna Summer | Casablanca 939 |
| November 4, 1978 | 2 | MacArthur Park | Donna Summer | Casablanca 939 |
| November 11, 1978 | 1 | MacArthur Park | Donna Summer | Casablanca 939 |
| November 18, 1978 | 1 | MacArthur Park | Donna Summer | Casablanca 939 |
| November 25, 1978 | 3 | MacArthur Park | Donna Summer | Casablanca 939 |
| December 2, 1978 | 4 | MacArthur Park | Donna Summer | Casablanca 939 |
| December 9, 1978 | 5 | MacArthur Park | Donna Summer | Casablanca 939 |
| December 16, 1978 | 9 | MacArthur Park | Donna Summer | Casablanca 939 |
| December 23, 1978 | 12 | MacArthur Park | Donna Summer | Casablanca 939 |
| December 30, 1978 | 15 | MacArthur Park | Donna Summer | Casablanca 939 |
| January 13, 1979 | 25 | MacArthur Park | Donna Summer | Casablanca 939 |
| January 20, 1979 | 31 | MacArthur Park | Donna Summer | Casablanca 939 |
| January 27, 1979 | 52 | MacArthur Park | Donna Summer | Casablanca 939 |
| February 3, 1979 | 91 | MacArthur Park | Donna Summer | Casablanca 939 |
Rankings greater than 100 are from the Cashbox 'Looking Ahead' charts.