What term do we use for groups like Big Bang & SNSD?
They're much popular outside S.Korea (so not local), but it's mostly among Asia countries (so not really global).
Both group are for sure global, but they're rather EXCLUSIVE. They have strong fanbases in Asia and outside. But for uninitiated people they're unknown. 2NE1 is the group which can break into worldwide market, to be known for uninitiated people.