Justin Bieber has become the first person in history to get 2 billion views on YouTube according to social media monitoring company Famecount.At the time of this writing, Bieber's Vevo-hosted content, which is also an official channel on YouTube, had racked up over 5 million additional views since passing the milestone sometime over the weekend.
It seems only fair that Bieber should be the one to break this record, since his career may never have been possible without YouTube. According to a Billboard profile, the Canadian teen began posting videos of himself singing cover songs at age 12. The videos were discovered by a talent scout, Bieber was signed to Usher's record label, and four years later he's so famous that a lock from his formerly floppy hair sold for over $40,000 on eBay earlier this year.
YouTube has long relied on user-generated content, like that of the young Bieber, but that may be changing. On Friday, Google's video site announced that they would be adding 100 new video channels with original content paid for by YouTube. Celebrities who are already signed on to make videos include Madonna, Amy Poehler, Shaquille O'Neal and Deepak Chopra.
Check out our slideshow below to see which stars are getting the most play on YouTube.