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During the 'Naver V' app show, Zico revealed, "My most treasured self-composed song is 'Boys and Girls'. It's because I wrote it without anything getting in the way whatsoever."

He also talked about how he got started in music, sharing, "The time I spent studying abroad in Japan meant a lot to me. While I was studying art in Japan, I fell in love with music." 

What was your guess?