8Eight’s Joohee, 2AM’s Jokwon, BTS’ Rap Monster and Jongkook as well as female vocalist Lim Jeong Hee (J-Lim) collaborate for the first time to release a new song “Perfect Christmas.” The song was originally unleashed on the 18th of December, but today the company releases Big Hit Family’s first ever song. Esna Yoon (eSNa) wrote this special song and it…