[Video] Super Junior performed Oops with f(x) on SS4 in Singapore! f(x)DKPOPNEWS OfficialFeb 20, 2012 Share 0 comments Check out the performance clip of Super Junior and f(x) at the SS4 Singapore concert. Tags: F(x), Kpop, Ss4, Super junior, Video Share Previous articleNext article Leave a comment Name Email Content Post comment