Aug 16, 2021-present
Lee Seoyeon (이서연) is the main rapper, lead vocalist, and lead dancer of the girl group fromis_9, under Pledis Entertainment. Before debuting, Seoyeon used to be a YG Entertainment trainee. In 2017, Seoyeon appeared and competed in the survival show "Idol School" where she ranked 7th with 61,083 votes, earning her a spot in the group.
She debuted as a member of fromis_9 on January 24, 2018 with the mini album "To. Heart".