On September 12 episode of JTBC's television show 'Knowing Brothers', Seohyun made a guest appearance.

SeoHyun said, "When I was in elementary school, HeeChul had a really funky style."
She continued, "He used to have blonde hair, and wear these sky blue lenses, flower patterned pants. He also would frequently cover himself in pink."

She added, "That made me somewhat scared; I was quite scared of him at that time. I cried a few times because of him."

(Credit= Online Community, JTBC Knowing Brothers)
(SBS Star)