Song: "Open Up My Heart"
Artist: Dells
Peak position on the Cashbox Singles chart: #51
Number of weeks on the Cashbox Singles chart: 9
Weekly data:
| Week ending | Rank | Title | Artist | Label |
|---|---|---|---|---|
| April 4, 1970 | 89 | Open Up My Heart | Dells | Cadet 5667 |
| April 11, 1970 | 84 | Open Up My Heart | Dells | Cadet 5667 |
| April 18, 1970 | 80 | Open Up My Heart | Dells | Cadet 5667 |
| April 25, 1970 | 77 | Open Up My Heart | Dells | Cadet 5667 |
| May 2, 1970 | 70 | Open Up My Heart | Dells | Cadet 5667 |
| May 9, 1970 | 62 | Open Up My Heart | Dells | Cadet 5667 |
| May 16, 1970 | 60 | Open Up My Heart | Dells | Cadet 5667 |
| May 23, 1970 | 54 | Open Up My Heart | Dells | Cadet 5667 |
| May 30, 1970 | 51 | Open Up My Heart | Dells | Cadet 5667 |
Rankings greater than 100 are from the Cashbox 'Looking Ahead' charts.