Why is Gangnam Style a hit?

Chris Bowlby profiles the South Korean pop star Psy who became a worldwide success after a music video for the song 'Gangnam Style' went viral on YouTube. The video is the most popular ever on YouTube, has given Psy Number 1 hits across the world including the UK, and has sparked global dance craze. But what exactly is the key to Psy's success?

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4 minutes

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