| Artist name | Roles | Recordings |
|---|---|---|
| Schola Antiqua (Madrid-based Gregorian chant choir) | ||
| KRS-One | vocal | We Speak Hip Hop |
| Kase.O (Spanish MC) | vocal | We Speak Hip Hop |
| Artist name | Roles | Recordings |
|---|---|---|
| Schola Antiqua (Madrid-based Gregorian chant choir) | ||
| KRS-One | vocal | We Speak Hip Hop |
| Kase.O (Spanish MC) | vocal | We Speak Hip Hop |
| Artist name | Roles | Recordings |
|---|---|---|
| KRS-One | vocal | We Speak Hip Hop |
| Kase.O (Spanish MC) | vocal | We Speak Hip Hop |