| I LIKE IT | 4 REAL |
| Boyfriend~What Makes Me Fall in Love~ | NATURAL -World Premiere Album- |
| It's a crime | Color Change! |
| す き | Lovin' You |
| Superman (Piano Version) | Superman |
| What Time Is It ? | 4 REAL |
| Eternal Memories | C.L.L CRYSTAL LOVER LIGHT |
| 片想い | 4 REAL |
| ハルアラシ | VIVID |
| Butterfly's Garden | ALL YOURS |
| Fly High | VIVID |
| Hands up | Spin The Music |
| Cherish | ALL YOURS |
| Journey ~君と二人で~ | Spin The Music |
| Do U Like It ? (by Fantastic plastic Machine) (Extended Mix) | 4 REAL |
| Nice & Slow (Justa Little To The Left) | 4 REAL |
| I WANNA BE | ALL YOURS |
| I Know | BEST of CRYSTAL KAY |
| 涙のさきに | BEST of CRYSTAL KAY |
| Candy | BEST of CRYSTAL KAY |
| hard to say | BEST of CRYSTAL KAY |
| Girl's Night | BEST of CRYSTAL KAY |
| あなたのそばで | BEST of CRYSTAL KAY |
| Dream World | BEST of CRYSTAL KAY |
