On the February 23 episode, Red Velvet�joined as the guest. While meeting the various contestants, one claimed she's a friend of Yeri. The idol star then revealed, "The girl is my high school friend. At first, I didn't recognize her. I'm so surprised and startled."

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Song Han Hee, a friend of Yeri who has also participated in 'School Rapper', revealed to be true talent as she surprised all with her skills. On the other hand, her partner revealed to tone-deaf.�

Watch Yeri's surprise encounter with her high school friend and their performance in the clip!