| Artist name | Roles | Recordings |
|---|---|---|
| Gianna Nannini | ||
| Josh Groban |
| Artist name | Roles | Recordings |
|---|---|---|
| Gianna Nannini | ||
| Josh Groban |
| Artist name | Roles | Recordings |
|---|---|---|
| Gianna Nannini | producer | Bomboloni, Contaminata, M'anima, Meravigliosa creatura, Ottava vita |
| Josh Groban | producer | Oceano |