| Title | Singer | Writer | Album |
|---|---|---|---|
| Endless Love Endless Road | Mayuko Aoki, Masakazu Morita | Nobuo Uematsu | FFX OST |
| Pure Heart (Aerith theme) | RIKKI | Nobuo Uematsu, Jim Ediger, Emiko Shiratori | FFX OST |
| Suteki Da Ne (korean version) | Lee Soo Young | FFX OST | |
| The Moon ~Utikisama~ | RIKKI | RIKKI, Aki Kuroda | FFX OST |