JOY☆

 was an idol group originally formed in January 2012 under the name chirarhythm. They changed their name in September 2012. They announced their disbandment in December 2013 and disbanded in March 2014.

Final Line-up

 * Otsuki Nana (大月奈々) (Founding member)
 * Nakayama Ryou (中山綾) (Joined February 2012)
 * Abe Miyuki (阿部ミユキ) (Joined June 2012)
 * Samitsu Misa (佐光ミサ) (Joined November 2013)

Former Members

 * Okabayashi Misaki (岡林美咲) (Founding member, graduated August 2012)
 * Hanada Emi (花田恵美) (Founding member, graduated August 2012)
 * Matsumoto Yun (松本ゆん) (Joined June 2012, fired April 2013)
 * Yoshizawa Sari (吉沢沙莉) (Joined June 2012, graduated July 2013)

Singles

 * [2012.11.18] Everlasting Love / JUKE