SKY (CM Version)

 is the fourth digital single released by 9nine. It was released on April 30, 2008.

Tracklist

 * 1) SKY (CM Version)

Featured Members

 * Shimogaki Madoka
 * Kawashima Umika
 * Ashida Marie
 * Yoshida Mai
 * Yamaoka Midori
 * Miura Moe
 * Satake Uki
 * Nishiwaki Sayaka