MAMAMOO's Hwa Sa is in the last stages of her comeback preparations.
On September 19 at midnight KST, Hwa Sa released the performance teaser video for the track "NA" from her solo mini-album 'O.' In the performance teaser, Hwa Sa shows off the charismatic choreography with the dance crew Performance37.
Hwa Sa will release the upcoming mini-album 'O' on September 19 at 6 PM KST.
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