Haha's official channel uploaded a teaser featuring Byul and Kim Jongkook on November 9th and left fan with curiosity .
The tittle of the teaser is " Byul,Kim Jong Kook collab music drama teaser" and no more information was revealed other than that.The most interesting part is the scene Byul slapped Kim Jong Kook, and you can also hear short parts of both the singers' newest songs from their albums.
It seems they will release a music drama MV later or it's just a promoteional video for their new songs, let's stay tune with Dkpopnews for more information in the future.