'Good Daughter Singer Simcheong' has been impressing the viewers with her powerful voice and vocal range on 'Mask King,' making us itch to find out her true identity.

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Your curiosity will be now be answered, as the mystery singer behind the 'Simcheong' mask took off her disguise on the December 27 episode of 'Mask King.' The face behind 'Simcheong' was none other than A Pink's Namjoo! 

Some of you may have known that it was Namjoo all along, but for those that didn't know or wasn't too familiar with her voice, the reveal may have come as a surprise. 

Though the singer was ultimately eliminated in the duet against 'Tell Them I'm Dragon King,' at least more people know what a beautiful voice Namjoo has!