Most Appearances (Performer)
| Name | Role(s) | # |
|---|---|---|
| 554. Hirochan | Bass, Vocals | 1 |
| 554. Hiromi | Featured Artist | 1 |
| 554. Hiromi Uehara | Keys, Piano | 1 |
| 554. Hiroshisa Horie | Keyboards, Vocals | 1 |
| 554. Hiruy E. Tirfe (Sax) | Musician | 1 |
| 554. Hit La Rosa | Featured Artist | 1 |
| 554. Hobo Johnson and The Lovemakers | Featured Artist | 1 |
| 554. Hod David | Guitar | 1 |
| 554. Hokage Simon | Keys, Piano | 1 |
| 554. Holly Ann Butler | Vocals | 1 |
| 554. Holly Macve | Guitar, Piano, Vocals | 1 |
| 554. Holly Williams | Featured Artist | 1 |
| 554. Hollywood JB | Vocals | 1 |
| 554. Hombre Flores | Piano | 1 |
| 554. Homer Steinweiss | Drums | 1 |
| 554. Hop Along | Featured Artist | 1 |
| 554. Horace "King Hopeton" Campbell | Keys | 1 |
| 554. Horace Andy | Vocals | 1 |
| 554. Horacio Fumero | Upright Bass | 1 |
| 554. Horse Feathers | Featured Artist | 1 |
| 554. Hospital Ships | Featured Artist | 1 |
| 554. Hospitality | Featured Artist | 1 |
| 554. Hot Chip | Featured Artist | 1 |
| 554. Howard Jacobs | Background Vocals, Percussion, Wind Instruments | 1 |
| 554. Howard Wiley | EWI, Saxophone | 1 |