Having completed their first live performance of title track 'A' yesterday on Music Bank, the girls of Rainbow are continuing to work hard, on today's episode of Music Core.
Sporting simple yet cute outfits, the ladies continued to lift their shirts and show off their sexy choreography, as well as their catchy tune. They have definitely improved since their debut, and it's quite evident that they have trained hard these past few months.
Check it out below!
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