Viral smash has earned over 800 million views in four months.
PSY's "Gangnam Style" is now the most-watched YouTube video of all time.
The 4:13 clip from the South Korean rapper has earned approximately 803,761,000 views since it was posted on July 15, 2012. Early on Saturday, that total passed the longtime YouTube champ -- the music video for Justin Bieber's "Baby," which has garnered 803,732,000 views since its February 2010 release.
"Gangnam Style" already set YouTube's record for the Most Liked video ever posted to the site, with its total now standing at 5.3 million Likes and 323,000 Dislikes. Bieber's "Baby" clip has 1.4 million Likes and 3.1 million Dislikes.
Bieber's "Baby" clip enjoyed an impressive run at the top of the YouTube heap, becoming the most-watched video on the site in July 2010. At that time, the clip had collected more than 246 million views to leapfrog over Lady Gaga's "Bad Romance."
"#GangnamStyle just became the most watched video @YouTube!! #History," PSY posted to Twitter on Saturday morning in celebration of the achievement.
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Over the four months since the "Gangnam Style" video was posted on YouTube, PSY and his electro-pop anthem has inspired nothing short a pop culture phenomenon. The veteran K-pop artist has performed the "Gangnam Style" dance alongside Britney Spears, Madonna and most recently MC Hammer at the 2012 American Music Awards. In early September, the 34-year-old signed to Scooter Braun's Schoolboy Records, to become label mates with Bieber.
"Gangnam Style" peaked at No. 2 on the U.S. Hot 100, spending seven weeks in the runner-up spot behind Maroon 5's "One More Night." PSY was able to climb to the top spot of Billboard's Social 50 tally in late August thanks to the viral success of "Gangnam."
Although Bieber no longer owns the top YouTube video, the teen star can take solace in the fact that his personal Twitter account ( @justinbieber) has 30.6 million followers, dwarfing PSY's Twitter following of 1.3 million.