Jisook and Gunjo teamed up for the August 26 installment of 'Immortal Song'.
For the DJ DOC special of the show, Jisook and Gunjo covered their 1996 track "OK? OK!" ("Beauty and Beast"). Gunjo commented, "When I appeared on 'Immortal Song' last time, people around me suggested I collaborate with Jisook."
Along with vocals, the two captured the spirit of the '90s with b-boying, which the DJ DOC members loved.
In the end, the Jisook and Gunjo team shared the 1st place trophy by tying with Wanna One with a total of 423 points.