| Artist name | Roles | Recordings |
|---|---|---|
| Shep Pettibone | remixer | Don't Make a Fool of Yourself (12" remix), Don't Make a Fool of Yourself (radio edit) |
| The Disco Boys | mix-DJ | Two of Hearts (European dance mix) |
| Artist name | Roles | Recordings |
|---|---|---|
| Mr. Kool Ade & Marco | vocal | I Need You |