On today's episode of Music Bank, world star and king of K-Pop Rain returned on the stage yet again to perform. But this time, like yesterday's M! Countdown, it was unfortunately Rain's goodbye stage as he focuses on other commitments. You guys should cherish every second of Rain's performance due to the fact that we don't know when he'll perform on TV again after his final goodbye stage on this Sunday's Inkigayo. So check out his awesome and charismatic stage of Hip Song! http://www.youtube.com/watch?v=7NEZA82GX7g