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Dänemark| Label: | Jive 1166-7-JAA |
| Genre: | Hip Hop |
| Format: | Vinyl (7" , Single , Promo) |
| A1 | Serious | |
| B1 | Serious |
| Label: | Jive JIVE 199 |
| Genre: | Hip Hop |
| Format: | Vinyl (7") |
| A1 | Serious » Featuring: KRS-ONE » Producer: DJ Doc, KRS-ONE » Remix: DJ Doc, KRS-ONE | 3:36 |
| B1 | I Got Cha » Producer: Lawrence Goodman | 3:17 |
| Label: | Jive JIVE T 199 |
| Genre: | Hip Hop |
| Format: | Vinyl (12" , 45 RPM) |
| A1 | Serious (Ceereeus BDP Remix) » Co-producer, Edited By: DJ Doc » Engineer: Ivan 'Doc' Rodriguez » Remix: Ivan 'Doc' Rodriguez, KRS-One | 4:28 |
| A2 | Serious (LP Mix) | 4:07 |
| B1 | I Got Cha » Producer, Mixed By, Arranged By: Lawrence Goodman » Written-By: L. Goodman, R. Waller, T. Thomas | 3:17 |
| B2 | Serious (Instrumental) | 3:23 |
| Label: | Jive 1167-1-JD |
| Genre: | Hip Hop |
| Format: | Vinyl (12") |
| A1 | Serious (Ceereeus BDP Remix) » Remix: Ivan 'Doc' Rodriguez, KRS-One | 4:27 |
| A2 | Serious (LP Mix) | 3:23 |
| A3 | Serious (Instrumental) | 3:23 |
| B1 | I Got Cha (Philly Extended Remix) | 4:23 |
| B2 | I Got Cha (LP Mix) | 3:17 |
| B3 | I Got Cha (Instrumental) | 3:17 |
| Label: | Jive 1167-1-JDAB |
| Genre: | Hip Hop |
| Format: | Vinyl (12" , Promo) |
| A1 | Serious (Ceereeus BDP Remix) » Remix: Ivan 'Doc' Rodriguez, KRS-One | 4:27 |
| A2 | Serious (LP Mix) | 3:23 |
| A3 | Serious (Instrumental) | 3:23 |
| B1 | I Got Cha (Philly Extended Remix) | 4:23 |
| B2 | I Got Cha (LP Mix) | 3:17 |
| B3 | I Got Cha (Instrumental) | 3:17 |
