An overdue duet cover cough2015cough. Thank you Aero for mixing this. I realized in the final chorus it become sorta messy with the adlibs (coughfailcough). Hope you guys can enjoy this.

Taeyeon, Tiffany, Yuri, Hyoyeon = Me
Seohyun, Sunny, Yoona, Sooyoung = Elea 

Constructive comments are welcome :) Good day~