On the last episode of 'MIX & MATCH' on November 6, veteran singer Psy made an appearance to reveal his thoughts on B.I, and Jung Chan Woo revealed which trainees were scary to him.

The final episode showed a past video message from Psy that was taken during the final match. �He said, "Hello. �I'm Psy. �This is the final stage to decide the next generation YG group. �B.I is a machine. �Composing machine, lyric writing machine, practicing machine, rapping machine, dancing machine. �He might be the person who set the new trend of the 21st century," not sparing any compliments.

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However, when the boys gathered for the final time in their dorms, Jung Chan Woo revealed a slightly different impression of not only B.I but also Bobby. �

Bobby said, "I really tried not to get attached, but I couldn't help getting attached." �Jung Chan Woo said, "At first, the hyungs were so scary."

B.I asked, "When you first came in, who seemed the scariest to you?" �Jung Chan Woo replied, "At first, B.I was the scariest." �However, he continued, "But that doesn't mean Bobby wasn't scary. �Now, Bobby is the scariest," making everyone laugh. �