Today on KBS' "Music Bank" official twitter, they wrote, "Special end of the year stage! What will these two have in store for us? Keep a look out!" along with a picture.
In the picture, the two are looking very close and showing off their great features.
Internet users commented, "They look really good together" and "There seems to be a shining light above them."
The two singers plan to show a great joint stage on today's broadcast.