The Pulse of K-Entertainment

Seo Youngeun
ArtistWAKEONE Entertainment

Seo Youngeun

Seo Youngeun (서영은) built her reputation the hard way: by being useful in every part of a stage. She emerged through Girls Planet 999 and debuted with Kep1er on January 3, 2022, quickly becoming one of the lineup's most dependable all-rounders across vocals, dance, and performance-heavy comeback cycles.

That consistency carried through the full Kep1er run. Youngeun appeared across the group's core Korean releases from First Impact and DOUBLAST to TROUBLESHOOTER, LOVESTRUCK!, Magic Hour, Kep1going On, and TIPI-TAP. In practical terms, that means her page tracks the whole arc of the project-group era rather than one short breakout window.

Her status changed in 2025 and 2026. After stepping back for health reasons in July 2025, WAKEONE Entertainment and KLAP Entertainment confirmed in March 2026 that her Kep1er activities had concluded. Until a new solo agency or debut path is announced, Youngeun's profile is defined by that four-year Kep1er body of work and by how often she functioned as the group's balance point on stage.

2 articles7 creditsDebut: January 3, 2022South Korean

Gallery

Discography

2024
TIPI-TAPMini Album
MemberKep1er
2024
Kep1going OnAlbum
MemberKep1er
2023
LOVESTRUCK!Mini Album
MemberKep1er
2023
Magic HourMini Album
MemberKep1er
2022
First ImpactMini Album
MemberKep1er
2022
DOUBLASTMini Album
MemberKep1er
2022
TROUBLESHOOTERMini Album
MemberKep1er

Fans Also Ask

Who is Seo Youngeun?
Seo Youngeun is a South Korean singer born on March 4, 2002 who debuted with Kep1er on January 3, 2022 after competing on Mnet's Girls Planet 999. She became known inside the group as a dependable all-round performer with strong vocals, stable live delivery, and sharp dance execution across Kep1er's entire main run.
When did Seo Youngeun debut?
Seo Youngeun debuted on January 3, 2022 as a member of Kep1er with the mini-album First Impact. The group was formed through Girls Planet 999 and launched under WAKEONE and KLAP, making Youngeun part of one of the most visible post-survival-show girl-group debuts of that cycle.
Why did Seo Youngeun leave Kep1er?
Youngeun went on hiatus from group activities in July 2025 because of health concerns. In March 2026, WAKEONE and KLAP confirmed that she had concluded her Kep1er activities at the end of her contract period. No new agency move or solo relaunch has been formally announced since that departure.
What albums did Seo Youngeun release with Kep1er?
Seo Youngeun appeared across Kep1er's major Korean releases including First Impact, DOUBLAST, TROUBLESHOOTER, LOVESTRUCK!, Magic Hour, Kep1going On, and TIPI-TAP. That run covers the group's full Korean-project era and shows how consistently she remained part of its core recording and promotion cycle from debut onward.
Was Seo Youngeun one of Kep1er's strongest performers?
Yes. Youngeun was widely regarded as one of Kep1er's most dependable all-round members because she could handle vocal parts, dance-focused stages, and high-energy performance songs without looking overstretched. That versatility helped her stand out throughout the group's comeback cycle from 2022 through her 2025 hiatus.

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