Tracklist Hide Credits
| A | Happy MusicArranged By – Mastermind Written-By – G. Williams*, J. DaSouza*, S. Hendricks* |
| B | Uncle SlamWritten-By – Mastermind Written-By, Arranged By – A. Spencer* |
Companies, etc.
- Distributed By – Sun Records
Credits
- Producer – Julian DaSouza, Mastermind
Barcode and Other Identifiers
- Rights Society: ASCAP
Other versions
| Category | Artist | Title (Format) | Label | Category | Country | Year |
|---|---|---|---|---|---|---|
| HM 1108, JM 958102 | Mastermind | Happy Music (12") | Half Moon , Half Moon | HM 1108, JM 958102 | US | 1981 |
| HM 1110 | Mastermind | Happy Music (7") | Half Moon | HM 1110 | US | 1981 |
| HM 1110 | Mastermind | Happy Music / Uncle Slam Wants You (7") | Half Moon | HM 1110 | US | 1981 |
