Song: "Ffun"
Artist: Con Funk Shun
Peak position on the Cashbox Singles chart: #18
Number of weeks on the Cashbox Singles chart: 16
(15 weeks in the Top 100)
Weekly data:
| Week ending | Rank | Title | Artist | Label |
|---|---|---|---|---|
| December 3, 1977 | 107 | Ffun | Con Funk Shun | Mercury 73959 |
| December 10, 1977 | 85 | Ffun | Con Funk Shun | Mercury 73959 |
| December 17, 1977 | 75 | Ffun | Con Funk Shun | Mercury 73959 |
| December 24, 1977 | 65 | Ffun | Con Funk Shun | Mercury 73959 |
| December 31, 1977 | 50 | Ffun | Con Funk Shun | Mercury 73959 |
| January 7, 1978 | 47 | Ffun | Con Funk Shun | Mercury 73959 |
| January 14, 1978 | 37 | Ffun | Con Funk Shun | Mercury 73959 |
| January 21, 1978 | 32 | Ffun | Con Funk Shun | Mercury 73959 |
| January 28, 1978 | 28 | Ffun | Con Funk Shun | Mercury 73959 |
| February 4, 1978 | 23 | Ffun | Con Funk Shun | Mercury 73959 |
| February 11, 1978 | 21 | Ffun | Con Funk Shun | Mercury 73959 |
| February 18, 1978 | 19 | Ffun | Con Funk Shun | Mercury 73959 |
| February 25, 1978 | 18 | Ffun | Con Funk Shun | Mercury 73959 |
| March 4, 1978 | 33 | Ffun | Con Funk Shun | Mercury 73959 |
| March 11, 1978 | 46 | Ffun | Con Funk Shun | Mercury 73959 |
| March 18, 1978 | 67 | Ffun | Con Funk Shun | Mercury 73959 |
Rankings greater than 100 are from the Cashbox 'Looking Ahead' charts.