| Title | Singer | Writer | Album |
|---|---|---|---|
| Dead gardens | Nightwish | Once | |
| Hak gyo eh suh bae oon gut | Kim Jin Pyo | Once upon a time in highschool OST | |
| Higher than hope | Nightwish | Once | |
| Hoàng Phi Hồng | Once upon a time in China | ||
| Nemo | Nightwish | Once | |
| Romanticide | Nightwish | Once | |
| The promise | secret garden | once in a red moon | |
| The siren | Nightwish | Once | |
| Through the rain | Tom Keifer | Cinderella | Once upon a... |