The soul superstars harmonize on each other’s hits, welcome surprise guests and serenade a laundromat.
| Name | Type | Role | |
|---|---|---|---|
| David Young | Writer | ||
| Emmy Blotnick | Writer | ||
| Joey Manderino | Writer | ||
| Jim Wise | Writer | ||
| Alicia Keys | Guest Star | ||
| Taraji P. Henson | Guest Star | ||
| James Corden | Guest Star | ||
| John Legend | Guest Star | ||
| Benjamin Green | Director |