J.Y. Park generously praised Baek Ah Yeon on his Twitter and Instagram for "Shouldn't Have..." placing number one on real time music charts. 

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J.Y. Park taking to his social media accounts to personally praise the singer for this extraordinary feat is completely justified as Baek Ah Yeon's song has been maintaining high rank on music charts. His effusive congratulations went, "Dearest Ah Yeon...you placing first [on charts] seems so special...it's even more meaningful because this song is a work of your heart, and little by little rose to the top in a short span of just one month. I truly congratulate you. Let's work harder from now on~"

Let's also congratulate the singer on her success!