For the past month, the TVXQ boys have been�promoting their repackaged album, "Before U Go", and they're finally wrapping up�promotions with a goodbye stage on this afternoon's episode of "Inkigayo". "Before U Go" is a traditional R&B track infused with heavy emotions that are delivered brilliantly by�Yunho and Changmin's matured vocals. The song is unique in that it moves not only according to melody, but rhythm as well. The song switches back and forth between an 8-beat and 32-beat vocal rhythm. Check out the final performances of "Before U Go" and "Keep Your Head Down"!