| Artist name | Roles | Recordings |
|---|---|---|
| As One (Korean Girl Duo) | ||
| The Melody (Korean) | ||
| 이승환 (singer-songwriter) | ||
| 강화성 | arranger | For a While |
| 신석철 | drums | For a While |
| Artist name | Roles | Recordings |
|---|---|---|
| As One (Korean Girl Duo) | ||
| The Melody (Korean) | ||
| 이승환 (singer-songwriter) | ||
| 강화성 | arranger | For a While |
| 신석철 | drums | For a While |
| Artist name | Roles | Recordings |
|---|---|---|
| 강화성 | arranger | For a While |
| 신석철 | drums | For a While |
| 양광호 | mix | For a While |
| 조규찬 | arranger | For a While |
| 최훈 | bass guitar | For a While |
| 홍준호 | guitar | For a While |
| Artist name | Roles | Recordings |
|---|---|---|
| As One | vocal | White Love Story |
| The Melody | arranger | 랄랄라, It's Love! |
| 이승환 | vocal | 비겁한 애견생활 |