'Gangnam Style': A Dance Revolution

Meet the South Korean rapper who started a hilarious dance craze that's sweeping the U.S.
3:00 | 09/08/12

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Transcript for 'Gangnam Style': A Dance Revolution
Nearly a 120 million YouTube hits countless spin -- and charities it seems Americans just can't get enough. Of the goof it Korean music video called gang -- style. So what makes it irresistible ABC's David Wright takes a look. Korean pop music. Getting them stuff. Of viral video sensation more than a 120 million hits. The artist behind this video first of the American music scene last night. The video music. Don't you two right now. Keeping -- -- -- it may not have gotten the words. But the moves. Universal. The video is currently number one on the iTunes music videos show trotting past Taylor Swift. -- over Justin Bieber Katy Perry. -- likely slightly chubby pop -- behind the video is at 35 year old South Korean raptors -- side. Real name Jae sung park. I didn't expect anything. Overseas at all -- I was just thinking. To make huge huge. In Korea that was my only purpose ABC's Seoul bureau chief -- -- -- recently sat down with side explained that gun. First world wealthy -- neighborhood. The video poker faced send up for this style icons and have a Korea's most. Like Beverly Hills of Korea. I -- like Beverly Hills keep saying. -- -- who -- but if it is that I think that what's the. Even if the point is slightly lost in translation. The police still infectious gangland style -- a bona -- international here. So much so that Nelly Furtado is covering -- -- style at her concerts YouTube is -- local adaptations. -- -- -- -- London. And of course here in LA home to one of the largest Korean communities in the US -- At Dodger Stadium when they recently left side out of the crowd danced and had no shortage of people who knew his signature -- struck. And -- Beverly Hills itself. Rodeo Drive. Tony salon climax team so if I used the phrase. Young -- style does that mean anything here in Beverly Hills. Gangland style flash mobs are also YouTube phenomenon. Today we caught up with a hop choreographer who's leading the gangland style flash mob scene he's on him. I think anyone is funny captured audience -- the violence but you use you're right upper body also if the horse. So I was signed this week like Justin Bieber manager. He is now poised to become the biggest Korean props or -- the future. Side is leading the charge. Getting it done and I'm David Wright for Nightline.

This transcript has been automatically generated and may not be 100% accurate.

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