| Artist name | Roles | Recordings |
|---|---|---|
| Hardcore Hippies | ||
| Johanna Gadski (German soprano singer) | ||
| Amy (happy hardcore vocalist) | vocal | Make It Mine (feat. Amy) |
| Artist name | Roles | Recordings |
|---|---|---|
| Amy (happy hardcore vocalist) | vocal | Make It Mine (feat. Amy) |
| Artist name | Roles | Recordings |
|---|---|---|
| Hardcore Hippies | remixer | Dreams (DJ Silver & The Acolyte Acid Nightmare remix) |
| Johanna Gadski | remixer | Everlasting (DJ Silver & The Acolyte remix) |