VOISPER took their first ever stage on 'Immortal Song' on the February 25 installment of the show.
On the special for composer Choi Jong Hyuk, VOISPER were the second ones up with their cover of Kim Jong Chan's "Are You Crying Too?" The group members were visibly nervous, and they ended in tears at the end of their performance.
When the score was revealed, VOISPER were shocked and happy to learn they managed to defeat Park Wan Gyu on their first time on 'Immortal Song'. However, it was Song So Hee and Go Young Yeol who took the final win.