On October 12, Ock Joo Hyun's agency Potluck posted a photo via Instagram featuring the singer/musical actress with celebrity couple Song Joong Ki and Song Hye Kyo!

The caption read, "Song Song #Ock Joo Hyun, #Song Joong Ki, #Song Hye Kyo."  The couple posed with Ock Joo Hyun wearing thick makeup, shortly after the end of a performance of Ok Joo Hyun's latest musical 'Rebecca'. Ok Joo Hyun is well-known for being a close girl friend of Song Hye Kyo. 

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Meanwhile, the Song-Song couple will be holding their wedding ceremony on October 31. Ock Joo Hyun is expected to sing their congratulatory song.

송이 송이 눙꽃송이 #송눙송 #옥주현 #송중기 #송혜교

A post shared by 옥주현 OKJOOHYUN 이지혜 LEEJIHYE 포트럭 (@potluck_official) on Oct 11, 2017 at 6:20pm PDT