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Dänemark| Label: | Towerbell Records TOW 22 |
| Genre: | Pop |
| Format: | Vinyl (7" , 45 RPM , Single) |
| A | Iko-Iko » Written By: R.L. & B.A. Hawkins, J. Johnson, J. Thomas, S. & J. Jones » Written-By: B.A. Hawkins, J. Thomas, J. Johnson, J. Jones, R.L. Hawkins, S. Jones | |
| B | I Should Have Known » Written-By: England |
| Label: | CBS CBSA 2551 |
| Genre: | Pop |
| Format: | Vinyl (7" , Single , 45 RPM) |
| A | Iko-Iko | |
| B | I Should Have Known |
| Label: | Friends Records FRS 029 |
| Genre: | Pop |
| Format: | Vinyl (7" , Single , 45 RPM) |
| A | Iko-Iko | |
| B | I Should Have Known Better |
| Label: | Towerbell Records TOWX 22 |
| Genre: | Pop |
| Format: | Vinyl (7" , Single , 45 RPM , Picture Disc) |
| A | Iko-Iko » Written By: R.L. & B.A. Hawkins, J. Johnson, J. Thomas, S. & J. Jones » Written-By: B.A. Hawkins, J. Thomas, J. Johnson, J. Jones, R.L. Hawkins, S. Jones | |
| B | I Should Have Known » Written-By: England |
| Label: | Metronome 0030.547 |
| Genre: | Pop |
| Format: | Vinyl (7" , Single , 45 RPM) |
| A | Iko Iko » Written-By: B. A. Hawkins, J. Thomas, J. Johnson, J. Jones, R. L. Hawkins, S. Jones | 2:48 |
| B | I Should Have Known » Written-By: England | 3:20 |
| Label: | Milan S 040 136 |
| Genre: | Pop |
| Format: | Vinyl (7" , Single , 45 RPM) |
| A | Iko-Iko | 2:53 |
| B | I Should Have Known | 3:28 |
| Label: | Towerbell Records 22 |
| Genre: | Electronic, Pop |
| Style: | Synth-pop |
| Format: | Vinyl (7" , 45 RPM , Single) |
| A | Iko Iko | |
| B | I Should Have Known |
| Label: | Towerbell Records TOWX 122 |
| Genre: | Pop |
| Format: | Vinyl (12" , 45 RPM , Picture Disc) |
| A | Iko Iko » Written By: R.L. & B.A. Hawkins, J. Johnson, J. Thomas, S. & J. Jones » Written-By: B.A. Hawkins, J. Thomas, J. Johnson, J. Jones, R.L. Hawkins, S. Jones | |
| B1 | I Should Have Known » Written-By: England | |
| B2 | I Still Love You |
