It looks like�B2ST's Yoseob is continuing the trend of idols quitting KBS's"Immortal Song 2". Due to his hectic Japanese promotion schedule, Yoseob will be unable to participate in the June 13th filming. Therefore, he's made the decision to leave the show, and it's been revealed that MBLAQ's G.O. will replace him. Yoseob managed to complete his final recording on June 6th, which revolved around performing�famous Boowhal songs. Producer Kwon Jae Young stated, "B2ST's Yoseob was unable to participate in the filming due to his Japanese schedule. He himself was very disappointed since he had a lot of love for the show. However, the show does not have an elimination system and there are no set members, so he will be able to rejoin the program again at any time. We are going to make the program very flexible in consideration of idols who have to carry out a lot of overseas promotions." The show's gathering a lot of interest for its revolving door policy. IU dropped out of the program due to her overwhelming schedule, and�SECRET's Song Ji Eun is slotted to replace�her. Super Junior's Yesung and SHINee's Jonghyun dropped out as well, but�2PM's Junsu and F.T. Island's Lee Hongki have confirmed that they'll take their spots. The new participants will join 2AM's Changmin and SISTAR's Hyorin, along with MBLAQ's G.O. for the show. The producer continued, "There will be many more idol singers participating in the program later on. We are currently aligning schedules with Super Junior's Kyuhyun, miss A's Min, and f(x)'s Luna. We will also have rookie girl group members who possess surprising vocals on the show later on as well." Only Hyorin and Changmin remain from the original six. Source: Sports Chosun via Nate