【Media】KIM HYUN JOONG 김현중 pre-releases 'Unbreakable' M/V

Source:http://osen.mt.co.kr/article/G1109642025

Source:http://www.newsen.com/news_view.php?uid=201307181416512410

Source:http://tvdaily.mk.co.kr/read.php3?aid=1374125893542106010