KPOP DISCOVER

5th generation · Sony Music Korea

cosmosy

コスモシー / 코스모시

cosmosy debuted in 2025 through Sony Music Korea, one of the few fifth-generation acts launched by a multinational label.

  • 2025DebutApr 11, 2025
  • 4Members
  • 5thGeneration
▶ Start hereView members
Lucky=One / Official MV
Lucky=One / Official MV

Last updated:

01

In 30 seconds: cosmosy

A single release carries everything so far, so the official video is the whole of the public record.

Worth watching if you are interested in which labels outside the usual four are still starting groups.

02

Key facts

Group name
cosmosy
Reading / Hangul
コスモシー / 코스모시
Company
Sony Music Korea
Debut date
April 11, 2025
Days active
568 days (1 year, 6 months)
Debut song
Lucky=One
Generation
5th generation
03

Member guide

ヒメシャ히메샤 · himeshaView in Japaneseディハナ디하나 · de_hanaView in Japaneseカミオン카미온 · kamiónView in Japaneseエイメイ에이메이 · a'meiView in Japanese

Profile comparison

MembersBirth dateBlood typeMBTINationality
ヒメシャ2006-01-2320Not disclosedNot disclosedJapan
ディハナ2006-05-1020Not disclosedNot disclosedJapan
カミオン2006-07-1820Not disclosedNot disclosedJapan
エイメイ2007-10-3019Not disclosedNot disclosedJapan

Ages are as of 2026-10-31.

Selected releases

04

Start here

Follow a few songs from the starting point to the group's current sound.

Lucky=One MVLucky=One MVThe debut release is the only entry point, and the official video carries the sound and the staging.
MVView in JapaneseDance PracticeView in JapanesePerformanceView in JapaneseStageView in JapaneseAudioView in Japanese
View all official videos →View in Japanese
05

From debut to now

  • 2025
    cosmosy started their run with Lucky=One.

Verified information

Verified English information is not yet available for this section.

10

Official links

Official site

sonymusic.co.krsonymusic.co.krcosmosy.comcosmosy.com

Official social accounts and platforms

YouTubeInstagramXTikTok

Shopping guide

Verified English shopping links are not yet available.

13

Japan activity score

KPOP DISCOVER original metric
No. 114/ 241 groups

No. 114 of 241 groups with recorded activity in Japan (top 47%)

  • 0Japanese releases
  • 0Japan-related tracks
  • 4Members from Japan
  • 0Official Japanese accounts

The denominator is the 241 groups, out of 564 covered by KPOP DISCOVER, whose raw score reaches at least one point. The score adds 10 points per Japanese-market release, 3 per Japan-related track, 12 per member from Japan, and 8 per official Japanese account. Japanese-market releases carry the most weight because they are the most direct evidence of activity; related tracks add track-level detail; members from Japan stand for Japanese-language communication and continuity; official accounts stand for a permanent point of contact. The weights are an editorial judgement, not a statistical optimisation, and the ranking tracks release volume in Japan closely. Source: releases, tracks, members, and official links recorded by KPOP DISCOVER (updated 2026-10-31).

How this score is calculated →View in Japanese

Frequently asked questions

What defines cosmosy?
A single release carries everything so far, so the official video is the whole of the public record.
Why should a new listener start with cosmosy?
Worth watching if you are interested in which labels outside the usual four are still starting groups.
Which songs should a new listener try first?
Start with Lucky=One, then continue to the official video index.