Tracklist
| I Don't Know (Radio Edit) | 4:16 |
| I Don't Know (Album Version) | 4:56 |
| I Don't Know (On The Colbert Report) |
Versions
| Category | Artist | Title (Format) | Label | Category | Country | Year |
|---|---|---|---|---|---|---|
| none | Lisa Hannigan | I Don't Know (CD, Single, Enh) | ATO Records | none | US | 2008 |
| none | Lisa Hannigan | I Don't Know (CDr, Single, Promo) | Hoop Recordings | none | UK | 2009 |
