| Artist name | Roles | Recordings |
|---|---|---|
| Indigo Girls | ||
| Philip Glass | ||
| Loudon Wainwright III | ||
| Was (Not Was) | ||
| Mark Johnson (US rock singer, songwriter & guitarist) | performer | Spaceman (feat. Mark Johnson) |
| Artist name | Roles | Recordings |
|---|---|---|
| Mark Johnson (US rock singer, songwriter & guitarist) | performer | Spaceman (feat. Mark Johnson) |
| Artist name | Roles | Recordings |
|---|---|---|
| Indigo Girls | vocal | Mystery, Reunion |
| Philip Glass | vocal | Forgetting, Liquid Days, Part One |
| Loudon Wainwright III | vocal | Christmas Morning |
| Was (Not Was) | vocal | Maria Novarro |