Singers Ulala Session revealed their feelings about leaving "Immortal Song."
Ulala Session, who gave their last stage performance, performed Choi Sung Soo's "NamNam." Choi Sung Soo almost teared up while watching their stage, and said "I almost cried."
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Ulala Session commented, "We thank all the staff and singers of 'Immortal Song' for giving us a great opportunity to do music."