Song: "Muscles"
Artist: Diana Ross
Peak position on the Cashbox Singles chart: #7
Number of weeks on the Cashbox Singles chart: 13
Weekly data:
| Week ending | Rank | Title | Artist | Label |
|---|---|---|---|---|
| October 2, 1982 | 66 | Muscles | Diana Ross | RCA 13348 |
| October 9, 1982 | 54 | Muscles | Diana Ross | RCA 13348 |
| October 16, 1982 | 37 | Muscles | Diana Ross | RCA 13348 |
| October 23, 1982 | 27 | Muscles | Diana Ross | RCA 13348 |
| October 30, 1982 | 21 | Muscles | Diana Ross | RCA 13348 |
| November 6, 1982 | 18 | Muscles | Diana Ross | RCA 13348 |
| November 13, 1982 | 15 | Muscles | Diana Ross | RCA 13348 |
| November 20, 1982 | 12 | Muscles | Diana Ross | RCA 13348 |
| November 27, 1982 | 10 | Muscles | Diana Ross | RCA 13348 |
| December 4, 1982 | 9 | Muscles | Diana Ross | RCA 13348 |
| December 11, 1982 | 8 | Muscles | Diana Ross | RCA 13348 |
| December 18, 1982 | 7 | Muscles | Diana Ross | RCA 13348 |
| December 25, 1982 | 12 | Muscles | Diana Ross | RCA 13348 |
Rankings greater than 100 are from the Cashbox 'Looking Ahead' charts.