Ok, I just get this info from the festival site. Read away !
With the death of former President Kim Daejung, the festival is postponed to Sep 5,2009. This schedule is impossible for SS501 since the boys will be in Japan for BoF promotion. So, they won’t be able to attend the concert !
As for their Fanmeeting in the Festival seems to be okay, since no news about it and we can see that SS501 photo is still in the column ! Yet, the date and time is still TBA ! Will inform u the soonest I get info !