On October 6 episode of SBS television show 'Running Man', Tiffany Young made a guest appearance.

As soon as the cast members of 'Running Man' heard "LA", they asked, "LA is like Jong-kook's second hometown. Have you ever seen him around?"
Tiffany Young answered, "We have a mutual friend. So, I know the place where he always stays when he visits the city."

Then, Kim Jong-kook raised his voice, "What are you seriously talking about? I have no daughter in LA!"
He continued, "Do you realize some people actually believe that I have a daughter in LA because of you?"

After joining the laugh, Tiffany Young said, "Well, as far as I know, Jong-kook only works out at the gym with his male friends while in LA."

(SBS Star)