Kokoro no Iro

 is a collaboration single released by Iwasaki Yoshimi and Cousin.

It was released on October 1, 2009.

Collaboration Single Information

 * Catalog Number: ZGRCA-1003
 * Lyrics:
 * Track 1: Urushido Hiroshi (漆戸啓)
 * Track 2: Iwasaki Yoshimi (岩崎良美)
 * Composition and Arrangement: Urushido Hiroshi

Tracklist

 * 1) Kokoro no Iro ~ Nanairo Neiro Tour (ココロの色～七色音色ツアー; Color of the Heart ~ Seven Color Tones Tour)
 * 2) Monochrome (モノクローム) (acoustic collaboration mix)
 * 3) Kokoro no Iro (Piano Solo)
 * 4) Kokoro no Iro (Instrumental)

Featured Member

 * Iwasaki Yoshimi
 * Koga Izumi
 * Urushido Hiroshi