There's no doubt that miss A and SISTAR have been two of the most outstanding new girl groups this year. Being somewhat like rivals, there have been tensions between fans of the two groups over who was better; and now reports say that SISTAR, have begun to chase down, lock up, and interrogate the members of miss A in a prison cell. Is this the beginning of a new K-Pop controversy? Fortunately, this whole thing is only a special stage for the "2010 SBS Gayo Daejun". SISTAR and miss A are to dress up as cops and inmates respectively for their big performance. Considering how the gimmick is already sexy by cultural standards, we're sure that these two groups will deliver a hot performance that'll be talked about for days to come. The "2010 SBS Gayo Daejun" will be aired at 9:55 PM KST on December 29th, so stay tuned to allkpop for coverage! Source: Newsen via Nate