4th generation · Banana Culture
TREI
トレイ / 트레이
TREI are three people handling singing, rapping and production between them, which keeps the records unusually personal.
- 2019DebutFeb 19, 2019
- 3Members
- 4thGeneration

Last updated:
In 30 seconds: TREI
The debut is muted and delicate, Turn the light gives the movement more room, and Deep breaks the sound into fine choreography.
Come here if you want a small group where you can hear exactly who did what.
Key facts
- Group name
- TREI
- Reading / Hangul
- トレイ / 트레이
- Company
- Banana Culture
- Debut date
- February 19, 2019
- Days active
- 2,811 days (7 years, 8 months)
- Debut song
- Gravity
- Generation
- 4th generation
Member guide
Profile comparison
| Members | Birth date | Blood type | MBTI | Nationality | ||
|---|---|---|---|---|---|---|
| イ・ジェジュン | 1997-09-25 | 29 | Not disclosed | Not disclosed | Not disclosed | South Korea |
| チェ・チャンヒョン | 1998-06-25 | 28 | Not disclosed | Not disclosed | Not disclosed | South Korea |
| キム・ジュンテ | 1997-04-14 | 29 | Not disclosed | Not disclosed | Not disclosed | South Korea |
Ages are as of 2026-10-31.
Selected releases
Start here
Follow a few songs from the starting point to the group's current sound.
Gravity MVGravity sets the temperature: quiet singing over a subdued palette.
Turn the light MVTurn the light shifts the focus onto the movement and the expressions.
Deep MVDeep shows how finely the three cut the sound into steps.From debut to now
- 2017Released under their own name, the single Up left the music of the three as a streaming work ahead of the official debut that followed.
- 2018A single called Nike came next, and at the end of the year a Selfie M/V for 시간내줘 went up on the official channel, widening the pre-debut video routes.
- 2019Gravity, from the five-track EP Born, brought the official debut, and Dance Practice, Performance Video, Choreography Video and Stage CAM were all published.
Achievements
Key milestones
Official links
Official social accounts and platforms
Shopping guide
Verified English shopping links are not yet available.
KPOP DISCOVER's TREI note
Stop at Gravity and TREI can look like a quiet vocal group. Go on to the Dance Practice and to the Choreography Video for Deep and you meet a trio that turns the fine detail of the sound into movement.
The official channel does not carry a large number of videos, yet MV, Dance, Performance and Stage are all present. Watching across the types gives a truer picture of the group than lining up many copies of the same footage.
Editors' take The MV for Gravity followed by the fixed version of the Dance Practice is the quickest pair for understanding TREI.
Trivia worth knowing
TREI worked as a three-member group.
Three proper releases can be identified under the group's own name — "Up", "Nike" and Born.
"Gravity" has a Music Video plus two Dance Practice takes shot from different angles.
An official Choreography Video for "Deep" shows how finely the rhythm is caught.
"Turn the light" was put out as an official Performance Video.
Broadcaster fancam counts were inflated by partial string matching, so they are left out of the group's video totals.