The keywords "kpop demon hunters" are trending primarily due to the immense popularity of a recently released animated musical film titled KPop Demon Hunters. This American-produced movie, launched on Netflix on June 20, 2025, features a fictional K-pop girl group named Huntr/x, who secretly lead double lives as demon hunters, battling a rival boy band whose members are actually demons.

The film has become a global phenomenon, quickly rising to become Netflix's most-watched animated movie ever. Its success is not only attributed to its engaging story that blends K-pop with fantasy and Korean mythology, but also to its highly successful soundtrack, which has seen multiple songs, including the hit "Golden," chart on the Billboard Hot 100.

The related searches for "kpop demon hunters costume" are a direct result of the film's popularity coinciding with the Halloween season. Characters from KPop Demon Hunters, such as Rumi, Zoey, Mira, and Jinu, became some of the most sought-after Halloween costumes for 2025, leading to widespread shortages of official merchandise. This surge in demand has prompted many fans to create their own outfits or look for individual costume pieces. The general term "kpop" is trending alongside "demon hunters" as the movie has significantly broadened the appeal and recognition of K-pop as a genre to a wider audience.