| Date | Location | Name | Instrument |
|---|---|---|---|
| 1991-07-21 | Casino Montreux | Ashford and Simpson, Andrae and Sandra Crouch and Tata Vega | - |
| 1991-07-21 | Casino Montreux | The Atlanta Superchoir | - |
| 1995-07-13 | Miles Davis Hall | Dr. Charles Hayes and The Cosmopolitan Church Choir | - |