Meet EXP Edition, an all-American band from New York who describe themselves as "a fresh hybrid of K-Pop".
On Thursday they released a teaser trailer for their upcoming song "Feel Like This", which is in Korean.
But K-Pop fans are not impressed.
And are pretty much roasting them.
Some addressed the more serious issue of Korean artists finding it difficult to break into the American market.
Some of the roasting led to some strong memes.
FYI, EXP Edition are definitely NOT a BuzzFeed group.
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Do you think EXP Edition are a K-Pop group?