The video for Psy’s Gangnam Style reached two billion views on YouTube.
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Psy's 'Gangnam Style' music video became the most viewed video on YouTube, passing 800 million views.
A shooting took place at YouTube's headquarters in San Bruno, California.
The vice president of Google, Susan Wojcicki, became the CEO of YouTube.
Psy's music video for 'Gangnam Style' surpassed one billion views on YouTube, becoming the first video to do so in the website's history.
The 7-year old Ryan of 'Ryan Toysreview' was announced as the year's highest-paid YouTube star earning $22 million.
