MAMAMOO's Hwa Sa has revealed her dance practice video for "NA".

In the dance practice video, Hwa Sa goes over the choreography for her latest song. "NA" is the title song of her 2nd mini album 'O', and it's about being yourself and having confidence.

Watch Hwa Sa's "NA" dance practice video, MV here, and let us know what you think in the comments below.

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