Apr 1, 2020-present
Seol Yoon-a (설윤아), better known as Sullyoon (설윤) is a member of the girl group NMIXX under JYP Entertainment. She was revealed as the fourth member of the group.
On March 23, 2023, it was announced that she would be a special MC for the music program Show! Music Core. Initially, she was introduced as a co-MC for the last month of March to the first week of April, following the departure of Kim Min Ju. On April 6, she was declared as the new official MC for Show! Music Core, starting from April 15.