Lee Soo Mi, known professionally as Lee Seo An, is a South Korean singer, dancer, actress and former member of SEEYA (씨야), COED SCHOOL (남녀공학) and F-VE DOLLS (파이브돌스). She graduated from Yeongshin High School and later obtained a degree from Korea Aviation Vocational School.
She made her debut in October 2009 when she joined as SEEYA's new vocalist with their EP, Rebloom. The group (not to be confused with another group called THE SEEYA) debuted in 2006 but faced some controversies due to the behavior of member Nam Gyu Ri. In April 2009, Nam stopped participating in group activities, alleging her contract had ended. MBK Entertainment (MBK엔터테인먼트, formerly known as Core Contents Media) decided to replace Nam and brought her as a new member. Then, in July 2010, MBK announced she would leave SEEYA in order to become a member of the company's new group.
She re-debuted in September 2010 as COED SCHOOL's leader, lead vocalist and rapper with their first digital single, Too Late. However, MBK opted to create two separate groups, one for the boys and another for the girls. She re-debuted again in February 2011 as F-VE DOLLS's leader and lead vocalist with their digital single Lip Stains. In February 2012, she announced her departure from the group and the agency as MBK faced financial issues, and the CEO wanted them to go back to being trainees. In addition, rumors began circulating about her being severely bullied by fellow members Huh Chan Mi and Seo Eun Kyo. These rumors were never officially confirmed, but many believed them to be true.
Afterwards, she began her acting career and began using her current stage name, Lee Seo An, in early 2019. As of January 2025, she is represented by Ghost Studio (고스트스튜디오).
