| Artist name | Roles | Recordings |
|---|---|---|
| MIKA (Japanese arranger) | arranger | Beautiful |
| Smappies | performer | 愛や恋や |
| 中島ノブユキ | instrument arranger | Special Thanks |
| 大橋好規 | arranger | Special Thanks |
| 小西康陽 | arranger | Life Walker |
| 長岡成貢 | arranger | 愛や恋や |
| Artist name | Roles | Recordings |
|---|---|---|
| The Matadors | drums | Get Down From the Tree |