Nearly 40 K-pop idol groups debut annually, average career lasts 4.12 years
K-pop idol groups average 39.4 new debuts per year since 1996, but most groups remain active for only about 4.12 years, a new academic study finds.
The findings were released on August 4 by Professor Kim Jung Seop of the Department of Culture Industry and Arts at Sungshin Women’s University. Professor Kim analyzed all 1,182 Korean boy and girl groups that debuted between H.O.T.’s 1996 debut and the end of 2025.
The research appears in the July 30 issue of the Journal of the Korea Entertainment Industry Association. It used boy group and girl group listings from the Korea Music Content Association and excluded solo artists and co-ed groups.
Across the 30-year span, the study counted 1,182 idol groups: 588 girl groups and 594 boy groups. That works out to an average of 39.4 new groups each year—19.6 girl groups and 19.8 boy groups annually.
The average group lifespan was 4.12 years, equal to 58.9% of the standard seven-year exclusive contract common in the industry. Boy groups averaged 5.11 years, while girl groups averaged 3.13 years.
Professor Kim explained the role of early investment decisions before presenting the study’s key quotes.
Professor Kim Jung Seop said:
“A group’s market performance during its first three years after debut largely determines whether its agency continues investing in it. As a result, many groups end their activities or effectively disband before completing their initial contract.”
“Boy groups benefit from highly loyal, female-centered fandoms, while girl groups rely more heavily on general public popularity, live events, and digital music revenue”
“The K-pop industry is fundamentally a high-risk business, but existing perceptions of that risk are somewhat exaggerated. There is a need to objectively reassess investment risks in the music industry”
The study found 55.03% of idol groups remain active three years after debut. That three-year survival rate is higher than South Korea’s small and medium-sized businesses at 41.5%, but lower than government-supported startups at 68.1%.
Commercially, few groups reach large sales milestones. Only 42 groups—3.55% of those analyzed—sold more than 300,000 copies of a single album. Nineteen groups (1.61%) sold more than one million copies of a single album and became “million-sellers.”
Eight groups reached 10 million cumulative album sales: BTS, SEVENTEEN, Stray Kids, EXO, TWICE, NCT, Tomorrow X Together (TXT), and ENHYPEN. That represents 0.68% of all groups in the study.
Professor Kim also noted BTS’s global success and its industry impact, describing the period after their breakthrough as a “post-BTS era.” He argued that K-pop must move beyond a single-success model and build a sustainable ecosystem through long-term artist development, systems that let failed acts try again, shared infrastructure for smaller agencies, and more systematic financial support.