Lyn talked about her friendship with Jo In Sung on MBC's 'Radio Star' this week.

Despite their close relationship, even Lyn appeared to get starstruck in front of the handsome actor. She said, "Even when he's next to me, he doesn't seem like a person. He looks like he jumped out of a graphic novel."

SEE ALSO: Former T-ara member Soyeon says she won't be attending Hyomin's wedding

She continued, "Kim Ki Bang introduced us...�I was so fascinated when I first met him, I said, 'Hello, I'm a fan.'"�However, he just responded in a very chic and nonchalant manner, which she figured was a result of getting this kind of reaction often. His response irked her so she decided to just be herself until they eventually became friends because he felt comfortable around her. She said, "We go to karaoke and invite each other over."

The MCs asked if she hung out with his girlfriend too, but she said, "No, no. I got a boyfriend, and he got his girlfriend [Kim Min Hee], so we did drift apart, but still..."