Tracklist
| A | I Wonder | 2:55 |
| B | My Whole World Is Falling Down | 1:52 |
Other versions
| Category | Artist | Title (Format) | Label | Category | Country | Year |
|---|---|---|---|---|---|---|
| 31510 | Brenda Lee | I Wonder (7", Pin) | Decca | 31510 | US | 1963 |
| 31510 | Brenda Lee | I Wonder (7") | Decca | 31510 | Canada | 1963 |
| FK-405 | Brenda Lee | I Wonder (7") | Festival Records | FK-405 | Australia | Unknown |
| FK-405 | Brenda Lee | I Wonder (7", TP) | Festival Records | FK-405 | Australia | 1963 |
| 05891 | Brenda Lee | I Wonder (7", Single) | Brunswick | 05891 | UK | 1963 |
