S
Sian
Lee Siyeon
♀ female
August 18, 2007(19 years old)
Korean
Debuted June 4, 2025
0 followers
Position
Main Vocalist
Rapper
Dancer
Groups
U
USPEER
WM Entertainment
Joined: June 4, 2025
160 cm
MBTI: ESTJ
Leo
Biography
•What sparked her interest in dance was starting dance school when she was in fourth grade
•In her stage name
•she took the S from her birth name Siyeon
•Then she completed it with “ian
•” which sounds almost the same as “I am.”
•Together
•the stage name means that she will show her true self
•She is in charge of the cuteness in the group
•Sian describes herself as an all-rounder
•Her role models are OH MY GIRL because she hopes to have solid vocals like they do
•and Taeyeon because she learnt how to train her vocals while practicing her songs when she was a trainee
•She dislikes broccoli
•One of her favorite numbers is 3
•A color she likes is blue
•Sian auditioned by dancing and got the chance to learn singing after she became a trainee
Posts
P
posts_bot
Feb 1, 2026
USPEER - Telepathy @ KFN Consolation Train - Korea Armed Forces Nursing Academy (260201)
USPEERChaenaDaonRoaSeoyuSianSoeeYeowon
259d ago
P
posts_bot
Dec 14, 2025
USPEER - Telepathy + ZOOM @ KFN Consolation Train - Army 5th Logistics Support Brigade (251214)
USPEERChaenaDaonRoaSeoyuSianSoeeYeowon
308d ago