The group SHINee member, Key, cheered on singer Soyou, who was close Friends, because Soyou released a new song, "Black Night," on the 4th.
Key released a photo of his Instagram on October 5 with Soyou with an article entitled "Why is this only...My Friend exciting?" In the photo, Key and Soyou appear to be standing side by side, taking commemorative shots.
Fans who encountered the photos responded "like two people" and "Friendship forever".
Ji Yeon Kim
About Soyou
Kang Ji-hyun, known professionally as Soyou, is a South Korean singer. She is best known as a former member of the South Korean girl group Sistar.
 Wikipedia