Song: "It Must Be Love"
Artist: Alton McClain & Destiny
Peak position on the Cashbox Singles chart: #45
Number of weeks on the Cashbox Singles chart: 14
Weekly data:
| Week ending | Rank | Title | Artist | Label |
|---|---|---|---|---|
| March 24, 1979 | 96 | It Must Be Love | Alton McClain & Destiny | Polydor 14532 |
| March 31, 1979 | 92 | It Must Be Love | Alton McClain & Destiny | Polydor 14532 |
| April 7, 1979 | 92 | It Must Be Love | Alton McClain & Destiny | Polydor 14532 |
| April 14, 1979 | 91 | It Must Be Love | Alton McClain & Destiny | Polydor 14532 |
| April 21, 1979 | 81 | It Must Be Love | Alton McClain & Destiny | Polydor 14532 |
| April 28, 1979 | 79 | It Must Be Love | Alton McClain & Destiny | Polydor 14532 |
| May 5, 1979 | 68 | It Must Be Love | Alton McClain & Destiny | Polydor 14532 |
| May 12, 1979 | 58 | It Must Be Love | Alton McClain & Destiny | Polydor 14532 |
| May 19, 1979 | 53 | It Must Be Love | Alton McClain & Destiny | Polydor 14532 |
| May 26, 1979 | 47 | It Must Be Love | Alton McClain & Destiny | Polydor 14532 |
| June 2, 1979 | 45 | It Must Be Love | Alton McClain & Destiny | Polydor 14532 |
| June 9, 1979 | 54 | It Must Be Love | Alton McClain & Destiny | Polydor 14532 |
| June 16, 1979 | 61 | It Must Be Love | Alton McClain & Destiny | Polydor 14532 |
| June 23, 1979 | 100 | It Must Be Love | Alton McClain & Destiny | Polydor 14532 |
Rankings greater than 100 are from the Cashbox 'Looking Ahead' charts.