| 526 | | Universum | Metal |
| 527 | | Unjust | Metal/Rock |
| 528 | | UNK | Hip-Hop |
| 529 | | Unk f/ Andre 3000 & Jim Jones | |
| 530 | | Unk f/ Baby D, DJ Montay, Parlae | |
| 531 | | Unk f/ D.G. Yola, DJ Montay | |
| 532 | | Unk f/ DJ Jelly | |
| 533 | | Unk f/ DJ Montay | |
| 534 | | Unk f/ Dru | |
| 535 | | Unk f/ Jazze Pha | |
| 536 | | Unk f/ Jim Jones, OutKast | |
| 537 | | Unk f/ Jizzleman | |
| 538 | | Unk f/ Loko | |
| 539 | | Unkle | Electronic |
| 540 | | Unkle Bob | Indie/Rock |
| 541 | | Unkle F/ Ian Brown | |
| 542 | | Unkle Feat. Duke Spirit | Electronic |
| 543 | | Unkle Kracker | |
| 544 | | Unklejam | |
| 545 | | Unknown | |
| 546 | | Unknown Artist | Rock/Soul |
| 547 | | Unknown Mortal Orchestra | Indie |
| 548 | | Unknown Prophets | |
| 549 | | Unknownn, The | |
| 550 | | Unlady Like | |
