| Artist name | Roles | Recordings |
|---|---|---|
| Ill (Australian hardcore band) | ||
| Plush (four-piece originating from San Francisco) | ||
| Syndec | ||
| The Roots (seminal hip hop group) |
| Artist name | Roles | Recordings |
|---|---|---|
| Ill | vocal | On Top |
| Plush | vocal | Son of a Bitch |
| Syndec | vocal | Piece of My Heart |
| The Roots | vocal | Silent Treatment (Kelo’s mix) |