Only 42 Out of 1,182 Groups Surpass 300,000 Albums Sold... 30 Years of K-pop's 'Survival War'

Analysis of Groups Debuting Since H.O.T.

Average Idol Group Activity Span: 4 Years

Boy Groups: 5 Years, Girl Groups: 3-Year Gap

Only Seven Teams Surpass 10 Million Album Sales

BTS Goyang Concert Scene. Photo by Big Hit Music

Over the past 30 years, less than four out of every 100 idol groups—that debuted in South Korea—have managed to sell more than 300,000 copies of a single album. Just over half of these groups continued their activities three years after debut. Although K-pop has grown into a global mainstream music market, the performance disparity has become increasingly concentrated among a select few, highlighting a pronounced 'winner-takes-all' structure.

According to the Journal of the Korea Entertainment Industry Association, Professor Kim Jeongseop of the Department of Culture Industry Arts at Sungshin Women's University published a paper titled "Survival and Hit Structure of the K-pop Idol Music Industry" in the journal issued on July 30. Professor Kim analyzed the survival rates and commercial performance of 1,182 idol groups that debuted in the past 30 years. The results showed that nearly half left the market within three years of debut. Only 3.55% of the groups exceeded 300,000 copies in single album sales.

The analysis covered 588 girl groups and 594 boy groups active between 1996—the year H.O.T., the starting point of the modern idol production system, debuted—and 2025. On average, 39.4 new groups debuted in the market each year during the study period. There was little difference in debut volume by gender: 19.6 girl groups and 19.8 boy groups debuted annually.

Meanwhile, activity periods were not long. The average duration of group activity was 4.12 years, only 58.9% of the standard seven-year initial exclusive contract period. While 87.99% of groups continued their activities one year after debut, this dropped to 55.03% by year three. The five-year survival rate was 36.62%, the seven-year rate 26.14%, and the 10-year rate just 17.92%. About 45% of debut groups exited the market within three years, 63% within five years, and 82% within 10 years.

The research team identified the first three years after debut as a decisive period for group survival. If a group fails to deliver results in albums and music streaming early on and cannot build a fandom, their company will reduce production and activity investments, which in turn leads to fewer album releases and activity opportunities.

Professor Kim analyzed, "Performance in the first one to three years determines whether the agency will continue to invest from the fourth year onward."

The survival gap by gender also stood out. The average activity period for boy groups was 5.11 years, 1.98 years longer than that of girl groups (3.13 years). This is attributed to boy groups typically establishing a fandom of repeat purchasers (for albums, concerts, and merchandise) earlier, while girl groups have relied more on general public recognition and revenue from music streaming and events.

By debut period, groups that emerged between 2006 and 2010 showed the highest survival rates: 72.34% survived for three years, 62.79% for five years, 53.19% for seven years, and 32.98% for ten years. This period marked the establishment of the digital music streaming market, growth of fandom-driven consumption, and a stable operating environment as capital flowed into entertainment agencies. In contrast, since 2011, competition has intensified as more groups debuted and costs associated with international expansion increased.

The bar for commercial success was even higher. Only 97 groups, or 8.21% of the total, sold more than 100,000 copies of a single album—a threshold deemed by researchers as the beginning of fandom formation. Just 42 groups (3.55%) sold over 300,000 units, and only 19 groups (1.61%) surpassed 1 million in single album sales.

Only seven groups—BTS, Seventeen, Stray Kids, EXO, TWICE, NCT, and Tomorrow X Together—have achieved cumulative album sales exceeding 10 million copies, accounting for just 0.59% of all groups analyzed.

While digital platforms have made music more accessible, consumer spending has increasingly focused on popular groups. As fandoms purchase albums not just to listen to music but also as collectibles and merchandise, sales are overwhelmingly concentrated among groups with established fanbases. This has led to a pronounced "winner-takes-all" phenomenon, with the coexistence of low-performing majority groups and a minority with exceptional performance.

The research team warned that if the structure—where follow-up investments are determined solely by early performance—becomes entrenched, K-pop's industry diversity may weaken. Groups that need more time to grow will find it difficult to survive, underscoring the need for a long-term development system and more opportunities for failed artists to try again. The report suggested expanding industry infrastructure—such as studios, platforms, and performance venues that can be jointly used by small and midsize agencies—and strengthening financial support systems.

Professor Kim stated, "There is a need for a long-term development system, an industrial structure that allows for repeated attempts, and shared infrastructure with systematic financial support for small and midsize agencies."

This content was produced with the assistance of AI translation services.