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Kep1er 케플러 (음악 그룹)

Current state (as of 2026-09-08)

• release: Kep1er — YouTube official channel: 2,540,000 subscribers, 1,195,810,637 views; latest: 'Kep1ian 4th MEMBERSHIP KIT Behind | Kep1us 케플러스' (2026-06-27). — as of 2026-06-28, via YouTube Kep1er 2026-06-28 07:55 UTC

About

Kep1er ( ; Korean: 케플러) is a South Korean girl group formed by CJ ENM through the Mnet reality competition show Girls Planet 999 in 2021. The group consists of six members: Kim Chae-hyun, Huening Bahiyyih, Choi Yu-jin, Kim Da-yeon, Ezaki Hikaru, and Shen Xiaoting. Originally a nine-piece ensemble, former members Kang Ye-seo and Sakamoto Mashiro departed from the group in July 2024, and Seo Young-eun departed in March 2026. The group debuted on January 3, 2022, under the co-management of WakeOne and Swing Entertainment with their first extended play (EP) First Impact.

Description via Wikipedia (lead extract) · name cross-verified Wikidata + Wikipedia.

Verified facts

Kep1er (케플러 (음악 그룹)) — verified Korean artist. Debut 2022. Agency: WakeOne. 7 members.

Details

• Genre: K-pop
• Founded: 2021
• Location: South Korea
• Category: girl group
• Debut: January 3, 2022
• Origin: 대한민국
• Members: 6인조
• Type: 다국적 걸 그룹
• Agency: 웨이크원, 블리츠웨이 뮤직

Source reconciliation

• Wikidata lists the Korean name as 케플러; KoreaAPI uses 케플러 (음악 그룹) (chosen by source authority).

Independent sources disagreed here — shown, not hidden.

Members (7)

• Choi Yu-jin
• Huening Bahiyyih
• Shen Xiaoting
• Hikaru Ezaki
• Kim Dayeon
• Kim Chae-hyun
• Seo Young-eun

Q&A — what agents ask

Cross-checked by 3 source(s)

• Wikidata — structured open knowledge base · view ↗
• Wikipedia — encyclopedic article · view ↗
• MusicBrainz — open music database · view ↗

Verification history

Verified & tracked since 2026-08-15 · 90 verified snapshots.

Append-only, timestamped — the record of WHEN a fact changed, which a latecomer cannot backfill. Full feed: /changes.json · machine-readable: get_history("artist:kep1er").

Verified badge

Embed it — the badge shows this entity’s verification tier + Skill Score and links back here (a “via KoreaAPI” citation):

<a href="https://aiagentlabs.co.kr/artist/kep1er.html"><img src="https://aiagentlabs.co.kr/badge/kep1er.svg" alt="Verified by KoreaAPI"></a>

[![Verified by KoreaAPI](https://aiagentlabs.co.kr/badge/kep1er.svg)](https://aiagentlabs.co.kr/artist/kep1er.html)

More from this agency (소속사) →

• Alpha Drive One
• Cha Woong Ki
• Huening Bahiyyih
• Jo Yu-ri
• Kang Daniel
• Kim Chae-hyun
• Roh Tae-hyun
• Shen Xiaoting