| Artist name | Roles | Recordings |
|---|---|---|
| Christina Aguilera | ||
| Line Bekkelund | ||
| 炼狱 |
| Artist name | Roles | Recordings |
|---|---|---|
| Christina Aguilera | ||
| Line Bekkelund | ||
| 炼狱 |
| Artist name | Roles | Recordings |
|---|---|---|
| Christina Aguilera | producer | Oh Mother, On Our Way |
| Line Bekkelund | producer | First Time |
| 炼狱 | producer | Groupie |