PSY recently appeared on Korean tv show Hidden Singer 5, where he revealed that he almost didn't upload "Gangnam Style" to YouTube because he didn't really know what it was!

Telling the story behind his hit song, he said: "To be honest, I didn't even know what YouTube was. When an employee suggested uploading the 'Gangnam Style' music video on YouTube, I said, 'I don't even have international fans, so why would we upload it?'"

"We did end up uploading it because they said it might be fun if we do, and then all of those things happened within a month".

The video currently boasts over 3 billion views on YouTube.

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