Song: "Is She Really Going Out With Him"
Artist: Joe Jackson
Peak position on the Cashbox Singles chart: #21
Number of weeks on the Cashbox Singles chart: 22
Weekly data:
| Week ending | Rank | Title | Artist | Label |
|---|---|---|---|---|
| May 12, 1979 | 90 | Is She Really Going Out With Him | Joe Jackson | A&M 2132 |
| May 19, 1979 | 81 | Is She Really Going Out With Him | Joe Jackson | A&M 2132 |
| May 26, 1979 | 81 | Is She Really Going Out With Him | Joe Jackson | A&M 2132 |
| June 2, 1979 | 74 | Is She Really Going Out With Him | Joe Jackson | A&M 2132 |
| June 9, 1979 | 60 | Is She Really Going Out With Him | Joe Jackson | A&M 2132 |
| June 16, 1979 | 51 | Is She Really Going Out With Him | Joe Jackson | A&M 2132 |
| June 23, 1979 | 43 | Is She Really Going Out With Him | Joe Jackson | A&M 2132 |
| June 30, 1979 | 36 | Is She Really Going Out With Him | Joe Jackson | A&M 2132 |
| July 7, 1979 | 32 | Is She Really Going Out With Him | Joe Jackson | A&M 2132 |
| July 14, 1979 | 29 | Is She Really Going Out With Him | Joe Jackson | A&M 2132 |
| July 21, 1979 | 26 | Is She Really Going Out With Him | Joe Jackson | A&M 2132 |
| July 28, 1979 | 24 | Is She Really Going Out With Him | Joe Jackson | A&M 2132 |
| August 4, 1979 | 23 | Is She Really Going Out With Him | Joe Jackson | A&M 2132 |
| August 11, 1979 | 22 | Is She Really Going Out With Him | Joe Jackson | A&M 2132 |
| August 18, 1979 | 21 | Is She Really Going Out With Him | Joe Jackson | A&M 2132 |
| August 25, 1979 | 22 | Is She Really Going Out With Him | Joe Jackson | A&M 2132 |
| September 1, 1979 | 24 | Is She Really Going Out With Him | Joe Jackson | A&M 2132 |
| September 8, 1979 | 32 | Is She Really Going Out With Him | Joe Jackson | A&M 2132 |
| September 15, 1979 | 40 | Is She Really Going Out With Him | Joe Jackson | A&M 2132 |
| September 22, 1979 | 55 | Is She Really Going Out With Him | Joe Jackson | A&M 2132 |
| September 29, 1979 | 87 | Is She Really Going Out With Him | Joe Jackson | A&M 2132 |
| October 6, 1979 | 100 | Is She Really Going Out With Him | Joe Jackson | A&M 2132 |
Rankings greater than 100 are from the Cashbox 'Looking Ahead' charts.