Girl group Rainbow will finally be returning to the music scene for the first time in a year and seven months!

The group's comeback was suddenly revealed on January 21 by DSP Media to surprised but excited fans.  A picture was released from the set of the girls' jacket shoot.  Woori, Jisook, and Hyunyoung hold up a sign that says, 'Rainbow Finally Comeback.'

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The girls can be seen on a set for a filming in relation to their upcoming, nearly complete new album, but not many hints are shown regarding the concept for their long-awaited comeback. However, it is revealed that they will be returning with a song for a new concept they never took on before.

Although the individual members were busy with MC roles, dramas, unit groups, and more, this will be the first time in a long time they will be promoting as a group again. Their comeback is expected to be in February!