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Dänemark| Label: | Polydor 810 568-7 |
| Genre: | Rock |
| Style: | Rockabilly |
| Format: | Vinyl (7" , Single , 45 RPM) |
| A | If You Wanna Be Happy | 2:54 |
| B | If You Know How To Rock And Roll (You'll Never Be Alone) | 3:15 |
| Label: | Polydor 8105687 |
| Genre: | Rock |
| Style: | Rockabilly |
| Format: | Vinyl (7" , Single , 45 RPM) |
| A | If You Wanna Be Happy » Written-By: Guida, Royster | |
| B | If You Know How To Rock And Roll (You'll Never Be Alone) » Written-By: Jan Podsiadly, Robert Podsiadly |
| Label: | Polydor POSPP560 |
| Genre: | Rock |
| Style: | Rockabilly |
| Format: | Vinyl (7" , Single , 45 RPM , Picture Disc) |
| A | If You Wanna Be Happy » Written-By: Guida, Royster | |
| B | If You Know How To Rock And Roll (You'll Never Be Alone) » Written-By: Jan Podsiadly, Robert Podsiadly |
