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Y:SY

Y:SY

Y:SY

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2026-07-13

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At a glance
Also known as
Y:SY
Category
K-pop
Debut
2018-00-00
Country
South Korea
Official
bing-zh-twyahoo-jp-newsbing-zh-cnbing-newsnaver-news

Who is this?

Lee Seo-yeon (Korean: 이서연, born January 22, 2000), also known as Y:SY, is a South Korean singer. She is best known as a former member of the girl group Fromis 9. Lee departed from the group after her contract with Pledis Entertainment expired in 2024. In 2025, she signed with H1ghr Music to start her career as a solo musician.

Career

  1. 2000
    Born
  2. 2018
    Member of Fromis 9

Trivia

  • •Place of birth: Seoul
  • •Citizenship: South Korea
  • •Known as: singer
  • •Genre: K-pop
  • •Plays: voice

What happened recently

News✓ Trusted
11/14/2025

Fromis_9's Lee Seo

Source
News✓ Trusted
11/7/2025

Fromis_9's Yi Seoyeon confirms solo debut

Source
News✓ Trusted
11/7/2025

Former fromis_9 Member Lee Seo-yeon to Make Solo Debut with H1GHR MUSIC in November

Source
News✓ Trusted
11/7/2025

fromis_9's Lee Seoyeon to debut solo as Y:SY with H1GHR MUSIC in November

Source

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