Now before you come in and share your fav recordings behind (those existed before some of us were born), I mean making a backstage studio for almost every song they release.
Not one documentary or a vlog showing it but a pattern like dance practice videos which became a standard later on.
So far itโs not that popular among many idol groups so itโs not fully popularized, but I see bunch of new groups doing it lately after it became a hit with NCT fans then SM did it with RV and other SM artists.
I was surprised seeing a kpop fan complaining that their favโs group company is neglecting their promotions because they had no studio recording backstage like the NCT ones. Itโs almost as if it has became a thing. And it will probably get more and more popular.