On December 9 episode of MBC FM4U's radio show 'Jang Seong-kyu's Good Morning FM', Oak Joo Hyun was invited as a guest.

Oak Joo Hyun said, "Ji Hyun was already really beautiful then. She looked like she had just gotten straight out of a cartoon or something."
She continued, "It almost looked like a movie when she walked through the gate of our school in the morning."

The singer said, "I don't know if she'll remember this, but I was a choir competition instructor for Ji Hyun's class at one point."
She went on, "She was very shy at that time, so she didn't speak much at all. But whenever she said something, she would make everyone around her laugh."

(Credit= 'goodmorningfm' Instagram, SBS Love from Star, SBS funE, Culture Depot, Potluck)
(SBS Star)