| Artist name | Roles | Recordings |
|---|---|---|
| BoA (South Korean singer and actress) | ||
| Bobby Kim | ||
| Epitone Project |
| Artist name | Roles | Recordings |
|---|---|---|
| BoA (South Korean singer and actress) | ||
| Bobby Kim | ||
| Epitone Project |
| Artist name | Roles | Recordings |
|---|---|---|
| BoA | arranger | 로망스 (Romance) |
| Bobby Kim | piano | Sing, Sing, Sing |
| Epitone Project | piano | 희망고문 |