| # | Nimike | Esittäjä | |
|---|---|---|---|
| 01 | HAPPY HAPPY |
TWICE
|
|
| 02 | The Best Thing I Ever Did -Japanese ver.- |
TWICE
|
|
| 03 | HAPPY HAPPY (collapsedone Remix) |
TWICE
|
|
| 04 | HAPPY HAPPY (Instrumental) |
TWICE
|
