3rd generation · Star Empire Entertainment
IMFACT
インファクト / 임팩트
IMFACT divided rapping, lead singing, writing and performance clearly between Jian, Jeup, Taeho, Leesang and Ungjae.
- 2016DebutJan 27, 2016
- 5Members
- 3thGeneration
- IFFandom

Last updated:
In 30 seconds: IMFACT
Lollipop opens brightly, Feel So Good and Tension Up carry the momentum, and Nanana and Lie turn toward polished electro pop.
Come here for a boy group whose singing holds up better than its chart position suggests.
Key facts
- Group name
- IMFACT
- Reading / Hangul
- インファクト / 임팩트
- Company
- Star Empire Entertainment
- Debut date
- January 27, 2016
- Days active
- 3,930 days (10 years, 9 months)
- Debut song
- Lollipop
- Generation
- 3rd generation
- Fandom name
- IF(イフ)
Member guide



イサン이상 · LeesangView in Japanese
ウンジェ웅재 · UngjaeView in JapaneseProfile comparison
| Members | Birth date | Blood type | MBTI | Nationality | ||
|---|---|---|---|---|---|---|
| ジアン | 1993-11-08 | 32 | 175cm | O | ENTJ | South Korea |
| ジェオプ | 1993-03-27 | 33 | 172cm | A | INFJ | South Korea |
| テホ | 1993-11-01 | 32 | 172cm | O | ENFP | South Korea |
| イサン | 1995-10-17 | 31 | 178cm | A | ISFP | South Korea |
| ウンジェ | 1998-05-28 | 28 | 174cm | B | INTP | 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.
Lollipop MVLollipop is the debut and the sunniest thing in the catalogue.
Feel So Good MVFeel So Good has the most drive and the best look at the stage work.
Nanana MVNanana is the polished late single and the most current-sounding of the three.From debut to now
- 2016Coming through as a Star Empire five-piece, they made an impression with bright pop and a hand in their own material.
- 2017In The Club, Please Be My First Love, Tension Up and Only U came out back to back, making it a year where growth can be traced through the releases.
- 2018Appearing on The Unit opened more ways to get to know them one by one, and Nanana moved on to a more polished dance song.
- 2019Japanese singles and a world tour strengthened the path to a committed fanbase outside the Korean activity.
- 2020Lie stands for the later IMFACT and shows how far the vocals and the performance had matured.
- 2022The members moved to individual work, and the solo and television routes of Jeup, Taeho and Ungjae lead back to the group itself.
Achievements
Key milestones
Verified information
Verified English information is not yet available for this section.
Official links
Official site
Official social accounts and platforms
Shopping guide
Verified English shopping links are not yet available.
KPOP DISCOVER's IMFACT note
What runs through IMFACT is the change from a bright start to a polished later stretch. Star Empire Entertainment debuted the five-member boy group in January 2016 with Lollipop, and the roles of rap, main vocal, production and performance sit clearly apart from one another.
Lollipop, Feel So Good and Nanana form the way in. Take the bright debut song, then the early track with momentum, then the polished sound of the later years in order, and the change IMFACT went through falls into place.
There is the singing of Jeup and Taeho, the production work of Ungjae and the leader and rap line of Jian, so The Unit and the solo careers can be read as routes back to the group. What remains is not only a short run of activity but the individual strengths of the members. Lollipop, then Feel So Good, then Nanana carries the brightness, the momentum and the polish.
Editors' take Lollipop / Feel So Good / Nanana — a Star Empire five-piece whose path from a bright start to a polished finish fits into three songs.
Trivia worth knowing
IMFACT layers I'm Fact over Impact, aiming at truthfulness and strong impression at once.
IMFACTORY in 2017 put out songs at short intervals, running from In The Club through to Only U.
Songwriting credits and solo work by the members open up more than an idol catalogue would suggest.
Several members appeared on The Unit, and that programme still sends new listeners back to the group.
Adding Only U Japanese Ver. brings the fan-facing side of the work into view beside the Korean singles.
Nanana and Lie mark the move from early brightness into a more polished late style.
Japan activity score
No. 195 of 241 groups with recorded activity in Japan (top 81%)
- 1Japanese releases
- 2Japan-related tracks
- 0Members 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 2026-10-24).
How this score is calculated →View in Japanese