The Chuseok special of 'Duet Song Festival' had senior artists choose a junior artist to make a duet with based on audition videos on September 16!

On this day, senior artist Seol Woon Do watched videos and revealed his criteria for picking a younger singer to pair up with - and the criteria was definitely interesting. He chose "a 2:8 hair part" �and showed his obsession with the hair part, insisting, "A 2:8 hair part is nice."

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While watching over audition videos, he said, "The face appears delicate," suggesting then that the 2:8 hair part might look good, causing amusement. While watching female singers' videos, he showed that he was a devoted husband, stating, "They're juniors I'd like to sing with, but for family reasons, I can't with them, which is a shame. Now my heart hurts when I see female participants."

He then called up UP10TION's Sunyoul, saying he wanted to sing a duet with the idol. He explained, "Your hair is in 2:8 so I like it," again showing his focus on the hair part.�