Hyosung appeared on KBS 2TV's 'Happy Together 3' on June 23 and talked about the malicious comments regarding her weight.

Regarding her looks, she first said, "I took care of my appearance diligently.  I heard that my female celebrity friends were asking, 'Where do you go?' 'What kind of care do you receive?' and more.  All this time, men had complimented me, but this time women did, which made me happy."

SEE ALSO: Jeon Hyo Sung reflects on past controversy and shares her passion for history

She then went on to say, "There were many malicious comments when I was chubby. There were many malicious posts saying, 'How can you be an idol with that body?' so I decided to go on a diet.  After I lost weight, there were malicious comments like, 'You're the first person I disliked after you lost weight.'  I wondered what I was supposed to do.  I was even traumatized."

Jun Hyun Moo said, "My friends were also disappointed when you lost weight.  I can't say the reason..." causing laughter.