This 2006 double A-side single, "Kirakuni / Together," showcased Crystal Kay's continued evolution in the J-pop and R&B landscape following her commercially successful album 'Crystal Style'.
- "Kirakuni" was written by Crystal Kay herself, marking a more personal contribution to her discography.
- "Together," the B-side, was a collaboration with Ken-Oh, a Japanese producer known for his work with other major artists.
- The single was released by Sony Music Labels Inc. and charted at number 14 on the Oricon Weekly Singles Chart.
Crystal Kay is a Japanese singer, songwriter, and record producer, best known for her work in R&B and pop music. She rose to prominence in the early 2000s with a string of successful singles and albums.
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