How Would POLARIX sing 'Chain Reaction' by Girls' Generation (Line Distribution)

Disclaimer : This video is FANMADE. Song : Chain Reaction Artist : Girls' Generation POLARIX Members : Pentor, Hangyul, Junhyuk, ShiHuan, Donghwa, Daeul, Zai, Shao Ziheng, Xin che DON'T REUPLOAD!