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2NE1 (pronounced "to anyone" or "twenty-one"), formerly known as 21, was a South Korean group under YG Entertainment in 2009. download video katy perry dark horse Previously promoted as “female Big Bang" and 21, YG officially stopped using the name 21 because another Korean musical group was using the same name. download video night changes 2NE1 is supposed to stand for "New Evolution of the 21st Century": "NE" meaning "New Evolution" and "21" standing for