레인보우 블랙 – RAINBOW Blaxx Special Album [RB BLAXX] Release Date: 2014.01.20 Genre: Pop Dance TRACK LIST: 01. Cha Cha 02. 한마디 03. Silhouette 04. Cha Cha (Original) 05. Cha Cha (Original) (inst.) MP3 320Kbps . .