《4 Real》는 2003년 11월 27일에 발매된 크리스탈 케이의 음반이다. 소니 뮤직 엔터테인먼트에 의해 발매되었다.
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| 1. | Boyfriend: Part II | Saeko Nishio | Sylvia Bennett-Smith, Reed Vertelney | 4:59 |
| 2. | I Like It (Crystal Kay loves M-Flo) | M-Flo, Crystal Kay | M-Flo, Crystal Kay | 5:44 |
| 3. | Nice and Slow | Saeko Nishio | Reed Vertelney | 3:34 |
| 4. | I'm Not Alone | T. Kura, Keri Hilson, Emi K. Lynn | T. Kura, Keri Hilson, Emi K. Lynn | 5:20 |
| 5. | What Time Is It | T. Kura, Michico | T. Kura, Michico | 4:06 |
| 6. | Candy | Yoshika | Octopussy | 4:20 |
| 7. | Can't Be Stopped | Saeko Nishio | Andreas Levander, Marcus Dermulf, Jonas Nordelius | 4:29 |
| 8. | Lead Me to the End | Masumi Kawamura | Solaya | 3:58 |
| 9. | Kataomoi (片想い; Unrequited Love) | Saeko Nishio, 51 -GOICHI-, Arkitec, Coyass | Taku Takahashi | 4:23 |
| 10. | Over the Rainbow | Yip Harburg | Harold Arlen | 3:58 |
| 11. | Do U Like It (by Fantastic Plastic Machine) Extended Mix | M-Flo, Crystal Kay | M-Flo, Crystal Kay | 7:01 |
