I was skimming the movie again, I was thinking -- how can the American filmmakers translate the consumption of another culture (S. Korea) in '80s American/European pop music back into an American context? Wouldn't they be missing out the Korean lens (or filter) by which Western pop culture was consumed if they were merely trying to translate it back into an American context? Even if they used the same songs in the Korean OST? They should instead try to capture how Americans originally consumed and used that pop music -- it'll be interesting to see what songs end up on the American OST.
Maybe the girls of The Facts of Life come close to matching up with some of the characters of Sunny.