Tracks
| # | Title | Sung by | |
|---|---|---|---|
| 1.1 | HAPPY UNBIRTHDAY | ASAGI | 4:50 |
| 1.2 | Funny Bunny! | D | 4:34 |
| 1.3 | HAPPY UNBIRTHDAY (Instrumental) | D | 4:50 |
| 1.4 | Funny Bunny! (Instrumental) | D | 4:30 |
| 2.1 | HAPPY UNBIRTHDAY (Music Video) | D | 5:02 |
| 2.2 | HAPPY UNBIRTHDAY (Music Video Making) | D | 27:15 |
Source: MusicBrainz release group 4a8f591c-caac-400f-af66-e1a014b82ed6 (CC0). Cover: Cover Art Archive.