2nd generation · B1A4 Company / RBW Japan
ビーワンエーフォー / 비원에이포
B1A4 built a reputation on bright pop and on members who write their own material, and the group now continues as CNU, Sandeul and Gongchan.
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O.K and Beautiful Target are the easy way in; What's Happening, Lonely and Solo Day are where the writing credits start to matter.
Come here for a late second-generation group that stayed close to its audience and kept making records after two members left.
| Members | Birth date | Blood type | MBTI | Nationality | ||
|---|---|---|---|---|---|---|
| シヌゥ | 1991-06-16 | 35 | 182cm | A | Not disclosed | South Korea |
| サンドゥル | 1992-03-20 | 34 | 178cm | A | Not disclosed | South Korea |
| ゴンチャン | 1993-08-14 | 33 | 181cm | A | Not disclosed | South Korea |
Ages are as of 2026-09-17.
Follow a few songs from the starting point to the group's current sound.
What's Happening? MVWhat's Happening? is where the members' own writing starts shaping the singles.
Lonely MVLonely is the ballad the group is best remembered for and the clearest showcase for the voices.
Rewind MVRewind belongs to the current line-up and shows what the group sounds like as three.Verified English information is not yet available for this section.
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What anchors B1A4 is bright pop living alongside songs the members write themselves. The five-piece debuted from WM Entertainment on April 23, 2011. O.K, released straight away, and Beautiful Target after it showed a presence built on an easy brightness, matching a name taken from the A4 of a loose-leaf sheet. The closeness to the fandom, called BANA, is another reason B1A4 carries its own air among the later second-generation groups.
Starting with What's Happening? gives the clearest view. That song from 2013 is packed with the lightness and humour particular to B1A4 and still works as the way in for anyone catching up. Lonely from the same stretch turns the other way, an aching melody out front that shows how wide the range is. Solo Day in 2014 has the airiness of summer, and A Lie in 2016 is the key track for following the members' part in the writing and the layering of feeling. Put those four side by side and the quieter side comes through as well as the brightness.
After the contracts of Jinyoung and Baro ended in 2018, the group moved to three: CNU, Sandeul and Gongchan. Origine and Like a Movie in 2020 set out the soft pop feel of the trio, and REWIND, on Connect in 2024, delivered the voices of a long-running group as they sound now. At the end of 2025 they left WM and set up B1A4 Company, and Set in 2026, carrying Rock Paper Scissors, completed the newest form. What's Happening?, then Solo Day, then REWIND covers the core of the bright pop, the summer lightness, and the present as three.
Editors' take What's Happening? / Solo Day / REWIND. A B1A4 Company trio that has spent 15 years renewing bright pop and its own writing.
No. 9 of 210 groups with recorded activity in Japan (top 4%)
The denominator is the 210 groups, out of 525 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 2026-09-17).
How this score is calculated →View in Japanese
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