Psy on stage performing Gangnam Style.

Psy on stage performing Gangnam Style.

Smash hit k-pop song Gangnam Style has broken yet another viral viewing record, passing two billion views on YouTube on Saturday night.

It was just over two years ago that many Australians watched the Gangnam Style film clip, famous for its singer's straight-faced delivery of quirky horse-riding inspired dance moves.

Park Jaesang, 36, who performs under the pseudonym PSY (short for Psycho), thanked viewers for their support on Twitter.

"2 billion views...they are very honorable and very burdensome numbers," Psy wrote. "With appreciation, I will come back soon with more joyful contents!!"

The song became a break-out hit for the multibillion-dollar Korean music industry. Uploaded in July 2012, the video passed over 1 billion views six months later. 

It spawned hundreds of response videos from all over the world, ranging from tribute to bewildered reaction videos.

The ads displayed on the Gangnam Style clip earned Psy over $US8 million ($8.6 million) in six months, according to Google chief business officer Nikesh Arora, who revealed the figure during the tech giants’s fourth quarter earnings call in January 2013.

The 36 year old's follow-up song, Gentleman, released mid-2013, achieved just over a half a billion views.