However, Kim Hyun Joong might not be able to attend to the said event due to his busy schedule filming for his new drama "Inspiring Generation" though there's no clear confirmation regarding this matter.
A representative from KBS " Because of Kim Hyun Joong's filming schedule back and forth in China and Korea. However, Kim Hyun Joong has no China schedule on the 14th but he's most probably will stay in Korea for the shooting. But I don't have any idea about his personal schedule".
Meanwhile, SS501's Maknae Kim Hyung Jun haven't reported yet if he will attend or not.
'DSP FESTIVAL' will be held in Jamsil Stadium on December 14th that will be attended by KARA, Rainbow. AJAX and DSP's former talents such as SS501's Park Jung Min, Click B and Sech Kies' Eun Ji Won.
Summarized and Translated by: Cheezeemelt
Please repost with full credits. Thanks!