There are unlikely worldwide phenomena and then there are the 'invisible horse' dance moves of Gangnam Style.
The video for that song is fast approaching half a billion views on YouTube, when it will be the third most watched clip of all time.
The man at the centre of it all, 34-year-old Korean rapper Psy, arrived in Australia on Tuesday struggling to fathom his role as the poster boy of K-Pop.
"It's a huge surprise personally and all over Korea because it never happened before to my country and everyone's looking to me," Psy told AAP in Sydney.
Psy is appearing at Future Music Festival 2013. Ticketson sale now atwww.futuremusicfestival.com.au.
"It's kind of a pressure because honestly I'm not that much a responsible person.
"I hate the word responsibility but for some reason I'm representing my country now so I've got to be good."
So far Gangnam Style has topped the charts in 33 countries, including Australia and Britain, and sits at No. 2 in the United States and at the top of the download list in China.
It was named after the Seoul district Gangnam where Psy was born, poking fun at the posers who flexed muscles, good looks and money - all the things Psy never had growing up.
A keen drinker with an eye for the ladies, Psy - short for 'psycho'; he was born Park Jae-sang - has been a successful pop star in Korea for a decade.
But he had no idea what was about to happen when he uploaded Gangnam Style to YouTube back in June.
Within weeks it was circulating on Twitter and attracting celebrity backers such as Katy Perry, Britney Spears and UN Secretary General Ban Ki-Moon, who heralded the song a "force for world peace".
Its galloping dance moves have become a viral sensation, inspiring hundreds of tributes and parodies but Psy says his wacky style is nothing new.
"To the world this is a new dance move but in Korea it's just another of Psy's dance moves," he says.
"I spent many nights with my choreographers trying with this animal or that animal and eventually I landed on the horse."
Psy has not ruled out adapting a kangaroo version for Australian fans when he returns in March to play Future Music Festival.
Demand for the singer is high with tickets to a show in Sydney this week on sale for $150. He will also perform on Sunrise and The X Factor.
Psy hopes he can boost the profile of other Korean artists but admits he is still learning to navigate the music industry, balancing the possibilities of becoming a one-hit wonder with a much longer international career.
"People keep asking me about my next single or my dance move or video so I'm always thinking about that and it's a nightmare because how can I meet Gangnam Style?
"I didn't make this happen, people made this happen, so I'd like to ask the people to help make it one more time."
A big leg up is his signing to Justin Bieber's manager Scooter Braun, who is said to be planning a long-term strategy for the star.
Psy has already spoken to Bieber about the possibility of a future collaboration but says the timing must be right.
"I don't want to get help from him," Psy says.
"I want to be just as big as him and the we can combine together.
"That makes sense."