On October 14 episode of TV Chosun's new survival audition show 'Tomorrow's National Singer', KOOKHEON made an appearance.

He continued, "But after a long thought, I decided that I wanted to continue my career in music, so that's why I joined this show."
While the police were investigating the vote-rigging controversy of Mnet's survival audition show 'Produce X 101', it was confirmed that KOOKHEON was one of the victims of the vote-rigging.
KOOKHEON's votes turned out to be fabricated, and so he was dropped from the show when he could have made it further.

HYOJUNG said, "I actually trained with KOOKHEON in the past, before I joined my current agency. He's a really hard-working person."
She resumed, "He wasn't good at dancing at all at first, but he's come this far just by keep trying. Even if the results don't turn out great today, I'm sure there will be a bright future for him."
She added with a trembling voice, "I truly hope the best for him. I'll keep rooting for you, KOOKHEON."

(Credit= TV Chosun Tomorrow's National Singer)
(SBS Star)