Jung Hye Sung exposed Super Junior Heechul's clubbing past.

On the June 10th episode of 'Kim Shin Young's Noon Song of Hope', one viewer expressed, "I saw the episode of 'Knowing Brothers' with you as a guest, and you said that you had cultural shock because of Heechul." Jung Hye Sung responded, "It's true. I didn't go to clubs after that. I was 23 years old, and it was when Heechul oppa was partying a lot."

She continued, "It wasn't the drinking. It was that he took a champagne cup and cupped himself with it, and then he threw tissue paper everywhere. I was so shocked as someone sober." Kim Shin Young added, "They throw tissue paper at the club. They give all the tissues. You pick them up and throw them again."

Jung Hye Sung then said, "I went to eat something to get sober, and someone ate rice with their hands," and Kim Shin Young replied, "I know who you're talking about. Those are all my friends. I feel so embarrassed."

Jung Hye Sung is starring in the new drama series 'New Normal Zine'.