Song: "Strawberry Letter 23"
Artist: Brothers Johnson
Peak position on the Cashbox Singles chart: #8
Number of weeks on the Cashbox Singles chart: 18
Weekly data:
| Week ending | Rank | Title | Artist | Label |
|---|---|---|---|---|
| July 16, 1977 | 83 | Strawberry Letter 23 | Brothers Johnson | A&M 1949 |
| July 23, 1977 | 70 | Strawberry Letter 23 | Brothers Johnson | A&M 1949 |
| July 30, 1977 | 54 | Strawberry Letter 23 | Brothers Johnson | A&M 1949 |
| August 6, 1977 | 36 | Strawberry Letter 23 | Brothers Johnson | A&M 1949 |
| August 13, 1977 | 25 | Strawberry Letter 23 | Brothers Johnson | A&M 1949 |
| August 20, 1977 | 22 | Strawberry Letter 23 | Brothers Johnson | A&M 1949 |
| August 27, 1977 | 17 | Strawberry Letter 23 | Brothers Johnson | A&M 1949 |
| September 3, 1977 | 15 | Strawberry Letter 23 | Brothers Johnson | A&M 1949 |
| September 10, 1977 | 12 | Strawberry Letter 23 | Brothers Johnson | A&M 1949 |
| September 17, 1977 | 9 | Strawberry Letter 23 | Brothers Johnson | A&M 1949 |
| September 24, 1977 | 8 | Strawberry Letter 23 | Brothers Johnson | A&M 1949 |
| October 1, 1977 | 22 | Strawberry Letter 23 | Brothers Johnson | A&M 1949 |
| October 8, 1977 | 22 | Strawberry Letter 23 | Brothers Johnson | A&M 1949 |
| October 15, 1977 | 23 | Strawberry Letter 23 | Brothers Johnson | A&M 1949 |
| October 22, 1977 | 22 | Strawberry Letter 23 | Brothers Johnson | A&M 1949 |
| October 29, 1977 | 26 | Strawberry Letter 23 | Brothers Johnson | A&M 1949 |
| November 5, 1977 | 32 | Strawberry Letter 23 | Brothers Johnson | A&M 1949 |
| November 12, 1977 | 54 | Strawberry Letter 23 | Brothers Johnson | A&M 1949 |
Rankings greater than 100 are from the Cashbox 'Looking Ahead' charts.