[Video] SISTAR and SISTAR19 performed on Open Concert! KpopDKPOPNEWS OfficialAug 16, 2011 Share 0 comments Check out the performance from SISTAR19 and SISTAR as they performed Ma Boy and How Dare You on Open Concert,like their performance? Tags: Kpop, Sistar, Sistar19, Video Share Previous articleNext article Leave a comment Name Email Content Post comment