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637: Always and Forever
Studio album by Crystal Kay
Released	August 22, 2001
Recorded	2001
Genre	J-pop,R&B
Length	48:22
Label	Epic
Crystal Kay chronology
C.L.L Crystal Lover Light (2000) 637: Always and Forever (2001) Almost Seventeen (2002)
Singles from 637: Always and Forever
"Lost Child(withShinichi Osawa andHiroshi Fujiwara)" Released: February 15, 2001 "Girl's Night" Released: May 9, 2001 "Ex-Boyfriend(feat.Verbal (M-Flo)" Released: July 4, 2001

637: Always and Forever is the secondalbum byJapanese singer andactressCrystal Kay.^{[citation needed]} It is her first R&B record; After the release of her debut albumC.L.L Crystal Lover Light, Crystal started to move towards her new sound and made the transition with the single "Girl's Night". The album637 features songs produced by well-known Japanese urban musicians Verbal, T-Kura, and Michico.

The album reached #19 on the weekly Oricon chart, and continued to rank for eight weeks. In all selling a total of 48,550 copies.

• Crystal Kay — official website

• 2001 albums
• Crystal Kay albums
• Epic Records albums

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