Park Jai-Sang is Korean, from a district of Seoul you almost certainly hadn't heard of three months ago. Yet now, thanks to YouTube, he and his district - Gangnam - are arguably the hottest thing on the planet.
Better known as Psy, his song Gangnam Style has been watched more than half a billion times on YouTube and he is now travelling the world on the back of his "horsey dance", with everyone from Britney Spears and Ellen through to the inmates of a Philippine prison recreating the signature moves.
He's still surprised at just how wide the phenomenon has spread. "This is my very first visit to Australia," he explains, "and at immigration, everyone knows me, and they asked me to do the dance ... at 7am in the morning."
Psy is the latest singer who has worked for years to become an overnight success. Six albums into his music career, he posted the Gangnam Style video on YouTube for his substantial Korean fan base. He and his management knew something special was happening when the viewer numbers starting jumping by millions a day and the comments changed language.
Now he is the face of Korean pop music, or K-Pop, something that he can't explain. "I feel it is too strange," he says. "I did just the same thing that I've done for 12 years and suddenly this happens." Psy won't even say this is his favourite song, referencing an old Korean saying about having 10 fingers (and biting any one brings pain to them all).
Still, his career in Korea has been a good training ground for his new role as a global sensation. "I heard that word 'sensation' 12 years ago in Korea. That was my debut and I released the same sort of song, and same sort of dance moves. So they were like 'Oh, WTF? What is that?!' And now other countries are doing that. So that's really funny."
His response to going No. 1 in Australia was also funny. "I'm sorry, but I asked my staff - is it Australia, the country? Greg -Norman, kangaroo right? I'm No. 1 in that country? Why? I keep saying 'why' for two or three months now!"
Psy knows he is now his country's equivalent of Greg Norman - the first name that comes to mind when people think of South Korea. "That's the problem," Psy explains. "Because I'm the artist and I love freedom, but somehow I'm representing my country right now. So I've got to be good, but honestly I'm not that good a person."
As if to back up the claim, Psy attributes the choreography of his now famous dance to teamwork, only because he and his team can't remember who came up with what. "It's hard to tell. I have my own choreographers and they worked with me for 12 years since my debut, which means we hang out together so many times. And after the shows we drank together so many times. And we blanked out together so many times. We don't know any more when we made these moves!"
FIVE OTHER YOUTUBE MUSIC SENSATIONS
Her now famous Britain's Got Talent audition in 2009 went viral as her rendition of I Dreamed a Dream was viewed more than 100 million times (although the audition of six-year-old Connie Talbot in 2006 with Somewhere Over The Rainbow has been watched over 120 million times).
Justin Bieber posted videos of himself singing songs on YouTube as a child in Canada. It was spotted by his now manager who arranged for him to meet with Usher. Now he's one of the biggest pop stars in the world and is a massive hit, along with the cinema documentary telling that story.
The Arizona teen Avery was a YouTube hit in 2010 with covers and then her single Love Me or Let Me Go, which was the subject of a bidding war that resulted in her signing with Universal.
Black's mother paid a reported $4,000 for the single Friday to be recorded and to have a music video made. Now viewed more than 40 million times, it sparked a career and an appearance in a Katy Perry video.
The Australian dubbed their own Justin Bieber was found on YouTube by a record producer who signed him up, with his first single featuring Flo Rida.
-Sydney Morning Herald