Song: "My Best Friend's Wife"
Artist: Paul Anka
Peak position on the Cashbox Singles chart: #74
Number of weeks on the Cashbox Singles chart: 5
Weekly data:
| Week ending | Rank | Title | Artist | Label |
|---|---|---|---|---|
| April 23, 1977 | 82 | My Best Friend's Wife | Paul Anka | United Artists 972 |
| April 30, 1977 | 78 | My Best Friend's Wife | Paul Anka | United Artists 972 |
| May 7, 1977 | 74 | My Best Friend's Wife | Paul Anka | United Artists 972 |
| May 14, 1977 | 74 | My Best Friend's Wife | Paul Anka | United Artists 972 |
| May 21, 1977 | 89 | My Best Friend's Wife | Paul Anka | United Artists 972 |
Rankings greater than 100 are from the Cashbox 'Looking Ahead' charts.