레인보우 블랙 (Rainbow Blaxx) is a sub-unit of South Korean pop group 레인보우 (Rainbow). The released their first MV, Cha Cha, on 19 January 2014.

The members included are:
Jaekyung
Woori
Seungah
Hyunyoung Read more on Last.fm. User-contributed text is available under the Creative Commons By-SA License; additional terms may apply.