BTS released “13 Side Film #2” on Monday through their official Instagram account, @bts.bighitofficial. The film is part of the 2026BTSFESTA celebration, marking the group’s 13th debut anniversary.
It’s the second installment in this year’s anniversary content series from Big Hit Entertainment and HYBE. BTSFESTA is the group’s annual tradition of releasing special material around their June debut date. This year’s edition carries extra weight. Thirteen years is no small stretch for any act, especially one that reshaped what global pop stardom could look like.
BTS debuted on June 13, 2013, under Big Hit Entertainment in Seoul. Thirteen years is a long time to hold that level of attention in any corner of the music industry. The group built its audience through relentless creative output and a direct relationship with fans. The global K-pop market was a fraction of its current size at the time. What came after is well documented: stadium tours, multiple Grammy nominations, and a United Nations address. The scale still feels improbable.
The Instagram post reached nearly 1.8 million likes. For a group in their 13th year, that’s a striking number. ARMY, BTS’s global fanbase, remains deeply engaged. Most acts see that kind of involvement thin out over time. BTS has managed to keep the connection intact – and that says something about how they’ve chosen to show up for their audience, year after year.
What’s interesting about the Side Film format is what it implies. Anniversary content at this scale could easily default to a highlight reel – the biggest moments, the biggest numbers. Framing it as a “side film” suggests something more interior, a look at the process itself rather than just the results.
BTSFESTA has long been one of K-pop’s more considered fan rituals. Over the years, BTS has used BTSFESTA to release personal content. Letters, videos, and live streams have all leaned into the relationship between the group and its audience. It tends to feel more like acknowledgment than promotion. The group recognizes that their audience has been part of the journey. Thirteen years gives a lot of material to draw from.
Their rise helped reshape the global K-pop conversation in ways that are still playing out. New acts are still following paths that BTS helped carve. Watching them mark year 13 with a film built around that history is a chance to sit with the full arc – not just the highlights, but what 13 years of consistent work actually looks like. It takes more than talent to sustain something like this. It takes commitment to the craft, attention to how you connect with people, and the willingness to keep going when the initial excitement has passed.
Big Hit Entertainment, now operating under parent company HYBE, has structured the 2026BTSFESTA rollout across multiple releases. The second film arriving early in the week suggests more content is still to come.