Ring Ring Rainbow!!

 is the 11th single by YuiKaori.

Limited Edition CD

 * 1) Ring Ring Rainbow!!
 * 2) Calling Calling
 * 3) Ring Ring Rainbow!! (off vocal ver.)
 * 4) Calling Calling (off vocal ver.)

Limited Edition DVD

 * 1) Ring Ring Rainbow!! (MUSIC VIDEO)
 * 2) Ring Ring Rainbow!! (MAKING)

Regular Edition CD

 * 1) Ring Ring Rainbow!!
 * 2) Calling Calling
 * 3) Ring Ring Rainbow!! (TV size)
 * 4) Ring Ring Rainbow!! (off vocal ver.)
 * 5) Calling Calling (off vocal ver.)

Featured Members

 * Ogura Yui
 * Ishihara Kaori