[IK01] DIAMOND: Purity KiSS The first promo single from Idol KiSS's DIAMOND group comes with three gorgeous ballads showcasing their soothing voices. Met with great reception, this single set the standard high for the seven others following it! Released June 1st, 2008. Download Track # Track title Singers Mixer Lyrics 01 Jewel DIAMOND Elsa view 02 Every Heart (English ver.) DIAMOND Miri view 03 Watarasebashi DIAMOND Zemire view 04 Member Introductions DIAMOND Fukairi view