| Artist | Genre | ||
|---|---|---|---|
| 401 |  | Underground Dream | |
| 402 |  | Underground Heroes | Indie/Punk |
| 403 |  | Underground Kingz | |
| 404 | | Underground Velvet | |
| 405 |  | Underlined | |
| 406 |  | Underminded | |
| 407 |  | Underneath It All | |
| 408 |  | Underneath The Gun | |
| 409 |  | Underoath | Emo/Hardcore |
| 410 |  | Underscore | |
| 411 |  | Undersea Poem | |
| 412 | | Undershadow | |
| 413 | | Undersiege | |
| 414 |  | Undersin Clair | Pop punk |
| 415 | | Understands by Donna Summer | |
| 416 |  | Undertaker | |
| 417 |  | Undertakers | 60s/Rock |
| 418 |  | Underthreat | Metal |
| 419 |  | Undertones | |
| 420 |  | Undervienna Skies | |
| 421 |  | Undervud | |
| 422 |  | Underwater | Electronic |
| 423 |  | Underwater Circus | Punk/Rock |
| 424 |  | Underwolves | |
| 425 |  | Underworld | Electronic |
