As girl group SISTAR came under fire for rude attitude controversy during fan signing, Hyorin issued a quick apology.
On July 16, Hyorin tweeted, "I'm sorry because I think I unintentionally disappointed fans at the fan signing. Actually, the even with the fans was a fun time but I think my candid actions with the fans was enough to cause a misunderstanding."
She added, "From now on, I will not disappoint you. I'm sorry. I will be Hyorin who tries her best."
Previously, a short clip from the event held on July 13 showed Hyorin' rude attitude toward their fans. After the clip was shared online, many netizens criticized her for her rude attitude.
One of her fan commented on an online community board, "Hyorin's condition didn't look fine from the beginning. Hyorin had a expressionless face."