ArtistTamago Production
Siyeon
Siyeon (시연), born Lee Si-yeon (이시연) on May 16, 2000, is the main vocalist and guitarist of the South Korean girl band QWER under Tamago Production. She joined NMB48 Team M in August 2021, becoming a member of the Japanese AKB48 sister group based in Osaka. She graduated on August 8, 2023, and just five days later announced she was joining QWER as the fourth and final member. That swift transition made her the first Korean idol previously trained in Japan's AKB48 system to debut as a main vocalist in a K-pop live band.
Siyeon's classical idol background -- stage presence, vocal training, fan engagement -- gave QWER a polished melodic edge that balanced the rawer energy of her bandmates. Her emotive delivery became central to the group's identity. Known by her nickname Siyomin, she represents the letter R in QWER and plays guitar alongside Hina, giving the band a twin-guitar texture unusual in K-pop. Her MBTI type is INFJ.
Siyeon debuted with QWER on October 18, 2023, with the single album Harmony from Discord. The group completed their first world tour, ROCKATION, across 17 cities in 2025, and announced their fourth mini album CEREMONY for April 27, 2026.
1 articles4 creditsDebut: October 18, 2023Korean
Gallery
Discography
2026
CEREMONYMini Album
Main Vocalist, Guitarist
2024
ManitoMini Album
Main Vocalist, Guitarist
2024
Algorithm's BlossomMini Album
Main Vocalist, Guitarist
Other Credits
2023
Harmony from DiscordSingle Album
Main Vocalist, Guitarist
Fans Also Ask
What is Siyeon's real name?
Siyeon's real name is Lee Si-yeon (이시연). She was born on May 16, 2000, in South Korea. She is known by the nickname Siyomin and represents the letter R in QWER.
Was Siyeon in NMB48?
Yes. Siyeon was a member of NMB48 Team M, the AKB48 sister group based in Osaka, Japan, from August 2021 to August 2023. She graduated August 8, 2023 and announced her QWER membership just five days later as the group's final member.
What is Siyeon's role in QWER?
Siyeon is the main vocalist and guitarist of QWER, representing the letter R. Alongside Hina, she forms a twin-guitar line rare in Korean idol acts. Her classical idol training from NMB48 gives QWER a melodic, emotive dimension.
How did Siyeon's NMB48 experience shape QWER?
Siyeon's years in NMB48 honed her stage performance, vocal control, and fan interaction within a rigorous idol training framework. Joining QWER, she brought that polish to a live band setting, giving the group melodic front-of-stage presence.
What albums has Siyeon released with QWER?
With QWER, Siyeon has performed on Harmony from Discord (2023), Manito (2024), Algorithm's Blossom (2024), and I'm on Your Side, Even If the Whole World Is Out of Tune (January 2026). The fourth mini album CEREMONY is scheduled for April 27, 2026.
