As we kick off 2026, the energy in the Korean music industry is nothing short of electric. For those of us living in the heart of K-Culture, the “Brand Reputation Index” is more than just a list—it is a reflection of how the public interacts with, talks about, and consumes their favorite icons.
Today, I’m breaking down the January 2026 Idol Group Brand Reputation Rankings. Whether you are a dedicated fan or a global marketer, these insights reveal the current power dynamics of the K-Pop world.
What is the Brand Reputation Index?
Before we dive into the names, it’s important to understand the data. This index is curated by analyzing big data regarding consumer habits. It measures:
- Participation Index: Consumer interest and search volume.
- Media Index: Coverage and visibility in the press.
- Communication Index: Interaction and mentions on social platforms.
- Community Index: The “virality” and spread within online communities.
Essentially, it tells us who is owning the conversation in Korea right now.

The Top 5 Idol Groups of January 2026
1. BTS (방탄소년단) – The Kings Return to the Throne
- Brand Reputation Score: 7,665,021 (↑23.19% from December)
- Key Highlights: 92.74% Positive Reaction.
BTS continues to prove they are in a league of their own. As we move further into 2026, the anticipation for “full-group” activities has reached a fever pitch. Living here in Seoul, you can feel the excitement—from popup stores to constant media buzz. Their Community Index (4,511,118) was the highest among all groups, proving that the ARMY’s digital presence remains unmatched.

2. BLACKPINK (블랙핑크) – Global Icons Reasserting Influence
- Brand Reputation Score: 5,260,330 (↑40.48% from December)
- Key Highlights: Explosive growth in trendiness.
BLACKPINK saw a massive 40% jump this month. As global fashion icons, their individual and group movements continue to dictate trends in the Hongdae and Gangnam fashion districts. Their high Community Index (3,924,739) suggests that their recent projects are resonating deeply with the Gen Z demographic.

3. IVE (아이브) – The “It” Girls of the Generation
- Brand Reputation Score: 4,698,168 (↓4.71% from December)
- Key Highlights: Steady household recognition.
Despite a slight dip, IVE remains the strongest “Fourth Generation” force in the Top 3. From Jang Wonyoung’s ubiquitous advertisements to An Yujin’s variety show dominance, IVE has moved beyond “idols” to become “household names” in Korea. Their brand influence is incredibly stable.

4. EXO (엑소) – The Legend Continues
- Brand Reputation Score: 4,359,274 (↑39.41% from December)
- Key Highlights: Remarkable resurgence in media and participation.
EXO’s rise this month is a testament to the longevity of veteran groups. With a nearly 40% increase, the group is seeing renewed interest, likely driven by a mix of solo projects and strong community nostalgia that keeps the fandom incredibly active.

5. SEVENTEEN (세븐틴) – Performance Powerhouses
- Brand Reputation Score: 3,648,163 (↓18.98% from December)
- Key Highlights: High communication and engagement.
Rounding out the top five, SEVENTEEN continues to be a staple in the brand reputation rankings. While they saw a decrease from their high December peak, their Communication Index (1,136,101) remains high, reflecting their deep, sincere connection with their fans, CARATs.
January 2026 Brand Reputation: Top 30 Rankings at a Glance
For those tracking the broader landscape, here is the full list of the Top 30 groups making waves this month:
| Rank | Group Name | Rank | Group Name |
| 1 | BTS | 16 | Super Junior |
| 2 | BLACKPINK | 17 | Wanna One |
| 3 | IVE | 18 | I-DLE |
| 4 | EXO | 19 | CORTIS |
| 5 | SEVENTEEN | 20 | LE SSERAFIM |
| 6 | aespa | 21 | NCT |
| 7 | TWICE | 22 | BTOB |
| 8 | Stray Kids | 23 | SHINee |
| 9 | MAMAMOO | 24 | KiiiKiii |
| 10 | BIGBANG | 25 | TWS |
| 11 | Red Velvet | 26 | RIIZE |
| 12 | Oh My Girl | 27 | NMIXX |
| 13 | THE BOYZ | 28 | WJSN |
| 14 | ENHYPEN | 29 | ILLIT |
| 15 | Apink | 30 | ATEEZ |
Kyoung’s Local Insight: Why These Numbers Matter
As a local expert, I see these trends play out in real-time. BTS’s dominance isn’t just about music; it’s about their role as cultural ambassadors. The rise of groups like EXO and BIGBANG (Rank 10) in 2026 shows a “New-tro” (New + Retro) trend where older groups are regaining massive popularity among younger fans.
Furthermore, keep an eye on groups like CORTIS and KiiiKiii. Their presence in the Top 30 indicates a shift in the Korean market toward diverse musical styles and independent-spirited branding.
What do you think about the January rankings? Is your favorite group climbing the charts? Let’s discuss in the comments below!
A lifestyle writer covering K-beauty, fashion, and art. Kyoung shares honest insights on K-pop and smart shopping, capturing the vibrant trends of modern Korea.

