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10) Gangnam Style
In this Sept. 25, 2012 photo, South Korean rapper PSY, who sings the popular "Gangnam Style" song, performs during a press conference in Seoul, South Korea.
As "Gangnam Style" gallops toward 1 billion views on YouTube, the first Asian pop artist to capture a massive global audience has gotten richer click by click. So too has his agent and his grandmother.
But the money from music sales isn't flowing in from the rapper's homeland South Korea or elsewhere in Asia. With one song, 34-year-old Park Jae-sang — better known as PSY — is set to become a millionaire from YouTube ads and iTunes downloads, underlining a shift in how money is being made in the music business.