KBS representatives recently explained the official reason behind the sudden cancellation of JYJ's appearance on KBS's 'Jeju 7 New Wonders of World KBS Special Live' that left JYJ and its many fans upset and confused. KBS officials told Sports  Korea, "Until the 3 members of JYJ finish their lawsuit with SM Entertainment, it will be difficult to appear on KBS." JYJ had planned to sing two songs on the stage, but on July 17th JYJ's agency, C-JeS received notification that their appearance was canceled just 4 days before their scheduled performance.   C-JeS also received notification that, "If JYJ makes an appearance, the broadcast itself is impossible", raising concerns of the possibility of 'backdoor pressure'. However, the representative stated, "The personal activities of the members of JYJ are possible. For example, Park Yoochun's appearance on KBS's 'Sungkyunkwan Scandal' happened." But past events still point to the fact that KBS has also obstructed their personal activities. For example, Park Yoochun was invited as the 'unknown guest star' by actor Kim Kap Soo on KBS's 'Kim Seung Woo is Doing Just Fine' due to their close relationship on 'Sungkyunkwan Scandal'. However, one day before the recording, it was reported there was a misfire.   As a result, Yoochun was not allowed to appear on the program. A representative explained, "That day Park Yoochun was not alone, because it was more for publicity for JYJ." Another representative told Sports Korea, "Park Yoochun was invited by his co-star in 'Sungkyunkwan Scandal', Kim Kap Soo. There was no reason for JYJ to appear." Meanwhile, on July 19th, JYJ fans began a signature campaign asking for both an apology and clear explanation for the cancellation of JYJ's appearance. Source: Sports Korea via Nate