Esna Yoon (eSNa) is releasing a new Christmas single on the 20th of December. The singer collaborates with Geeks’ Louie and Phantom’s Hanhae. Together, they’ll unveil the new single “Mistletoe” for everyone. eSNa says, “Louie (Geeks), Hanhae (Phantom), and I are coming out with a Christmas single on DEC.20.2013 hope…