These sales are quite low considering the cultural impact of the song. Radio wasn't too kind to it and it started to peak when sales for everyone are low, so it's understandable.
it will probably top 4 million by the end of next month.
considering radios flushed it down the toilets after reaching ~65 million AI, this is still pretty good.
It had that small of a peak? I heard it all the time. Well then I retract what I said before. These are impressive sales for a song shunned by radio. And if what you say is true, then the final sales will be somewhere in the 5.1-5.7 range when it's all said and done, which is great.
Yeah this foreign-language song is still selling great going off of only a music video. Radio might have thrown it away, but the interest is still there.
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Ganganam Style.
the Korean king 
Well then I retract what I said before. These are impressive sales for a song shunned by radio. 