|A1||I Don't Know (Piano Version)||5:23|
|A2||I Don't Know (Radio Edit)||4:30|
|B1||I Don't Know (Original Version)||6:14|
|B2||I Don't Know (Saw Version)||5:35|
Later released digitally on the compilation Dance, which also contains the artist’s other singles.
Barcode and Other Identifiers
- Rights Society: S.I.A.E.