What began as a playful web joke has officially evolved into K-pop's newest unit project. Hyorisu — featuring legendary Girls’ Generation members Hyoyeon, Yuri, and Sooyoung — first originated on Hyoyeon’s personal YouTube channel, Hyo’s Level Up, during a fan-favorite web series titled "Fake Kim Hyoyeon." In the show, the three veteran idols hilariously competed for crucial group positions like main vocalist, main dancer, and center, instantly captivating long-time fans with their unscripted comedic chemistry and effortless group dynamic. Now, the trio is taking that infectious energy far beyond the screen with the official debut of their two-track digital single, Skibidi, dropping this Monday at 6 pm KST across all major streaming platforms. To mark the release, a dedicated performance video for the title track will simultaneously premiere on the official SMTOWN YouTube channel, giving global listeners an immediate visual experience. Musically, the project cleverly balances modern experimentation with bright retro nostalgia. The title track, "Skibidi," starts with dynamic hou