Kim Soo Hyun's sister Kim Joo Na sings for High Society OST.

New singer Kim Joo Na's real identity has been revealed. She is none other than little sister to famous actor Kim Soo Hyun who recently starred in KBS drama The Producers. Websites were flooded with no.1 ranking search for Kim Joo Na as soon as the news was revealed she is related to Kim Soo Hyun.

On 21st July, the media has reported that Kim Soo Hyun's younger sister Kim Joo Na debuted as a singer and contributed a song to the High Society's drama OST- Without You. The song was a Part 3 for the popular drama airing starring UEE, Park Hyung Sik, Sung Joon and Im Ji Yeon. 

This turns out to be relatively true whereby Kim Soo Hyun is her elder brother. 
Not to forget idol group N-Sonic's member Zion is also related to the actor. Zion is the youngest cousin brother to Kim Soo Hyun. The two showed to be closed to each other.
Though Kim Soo Hyun is a famous actor, but his cousin is an idol group singer.

Is there any similarities between Kim Joo Na and her brother Kim Soo Hyun along with their cousin Zion?
Check it out for yourself! :D