Related Information for Jyj JYJ (previously known as JUNSU/JEJUNG/YUCHUN) is a trio, formed by former members of the South Korean boyband 동방신기 / 東方神起 (TVXQ) : Jaejoong (영웅재중/김재중), Yoochun (믹키유천), and Junsu (시아준수).The three members of TVXQ filed a lawsuit in mid-2009 against their South Korean record label, SM Entertainment, arguing that the 13-year length and structure of their exclusive contracts as well as the terms of profit distribution were unilaterally disadvantag.. read more