G-Friend surprised everyone with the entrance of a children's choir on the November 5 installment of 'Immortal Song'.

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They were the fifth ones up on stage with a cover of Shin Hyung Won's "Tuh". G-Friend's Yuju expressed, "The lyrics beautifully portray the soil of the Korean peninsula. With unity in mind, we put our own color into the rendition." 

Though Umji was missing from the stage, the addition of a children's choir at the end of G-Friend's performance added a beautiful and innocent charm. 

Highlight for spoilers: In the end, they weren't able to defeat BMK's 416 points, and it was Youmi who took the final win.