SISTAR's Soyou sings 'Officially Missing You' KpopDKPOPNEWS OfficialMar 10, 2015 Share 0 comments SISTAR's Soyou showcases her angelic vocal in her recent appearance on a show, check out her performance below: Tags: Kpop, Sistar, Soyou, Video Share Previous articleNext article Leave a comment Name Email Content Post comment