A lot of people are calling these girl MBLAQ‘s sisters because they share the same label, and I have no complaints so far. Double Up sounds like it’s going to be your standard, catchy dance track with a nice concept. The girls are glowing and exude a beach kind of vibe, with the locations of the MV obviously helping to amplify that. If Two X will officially be called MBLAQ’s sister group, based on this teaser, I wouldn’t mind it at all. Let’s see how the full release is before we make any final?judgements, though!