According to their agency BigHit Music, their Instagram account passed the mark as of last Wednesday, about a year after they opened the account.
The rising group's five members, who made their debut in August last year, have also built a strong following on other major platforms, with about 16 million followers on TikTok and over 6 million on YouTube.
In particular, the number of followers surged after videos of their live performance in front of a crowd of about 50,000 at Lollapalooza, an annual summer music festival in Chicago, earlier this month went viral, attracting a wave of new followers.
The quintet's song has also maintained a strong presence on global music charts. "REDRED," a title track from their second EP released in May, has remained on Spotify's Weekly Top Songs Global chart for 15 consecutive weeks, ranking No. 189 on the latest chart for the week ending last Thursday.
It also ranked No. 109 on Billboard's Global 200 and No. 63 on the Global Excl. U.S. chart for last week, marking its 14th consecutive week on both charts.
Riding their growing popularity, CORTIS will embark on their North American tour, visiting six cities including Atlanta and Los Angeles through Aug. 16.
They will also perform in Seoul on Aug. 22-23 before heading to Japan for a three-day concert in Kanagawa Prefecture on Sept. 4-6 and a rock music festival in Chiba later that month.
AJP Takeaways:
- Rookie K-pop boy group CORTIS surpassed 15 million followers on Instagram on Aug. 5, 2026, becoming the fastest K-pop group to reach that milestone among groups that debuted in the past five years, according to their agency BigHit Music.
- CORTIS, a five-member group that debuted in August 2025, had approximately 16 million followers on TikTok and more than 6 million subscribers on YouTube as of Aug. 8, 2026.
- CORTIS's Instagram follower growth accelerated after videos of the group's live performance at Lollapalooza, an annual music festival in Chicago on Aug. 1, 2026, went viral and drew a wave of new followers; the group performed before a crowd of about 50,000 people.
- CORTIS's song "REDRED," the title track from the group's second EP released in May 2026, has remained on Spotify's Weekly Top Songs Global chart for 15 consecutive weeks, ranking No. 189 on the chart for the week ending Aug. 6, 2026.
- CORTIS will perform in six North American cities, including Atlanta and Los Angeles, on their North American tour running through Aug. 16, 2026.
- CORTIS will perform in Seoul, South Korea on Aug. 22-23, 2026.
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