On September 18, Ha Ji Won shared a selfie taken with the BTS member via Instagram. She captioned, "Time flew by at brunch as we talked about photography and productions~ 'DNA' by BTS, who've become even cooler, is so great. I wish for it to be daebak."

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Many netizens are curious as to how the two stars have become close. Comments stated, "Wow, unexpected relationship!", "I'm so curious how they got close", "It's nice to see them together", and more.

As Ha Ji Won wished, BTS' "DNA" is currently a hit on YouTube and iTunes. 

??? ????? ????? ??? ???~? ??? ?????? 'DNA'?? ?? ????

A post shared by Jiwon Ha (@hajiwon1023) on Sep 18, 2017 at 6:29am PDT