YouTube has come to define the era of online video, so let's take a look at its most popular videos of all time. Our latest update has Justin Bieber still at number 1 with Baby, which was the first video to earn a half a billion views! Also of note is a music video by Jennifer Lopez called On The Floor ft. Pitbull, which has risen to number 2 with over 500 million views in less than a year.

We first did this list in August 2007, at which point Evolution of Dance by comedian Judson Laipply was number 1 with nearly 56 million views (it's now outside the top 10). The next update was September 2008, when Avril Lavigne's Girlfriend pop music video was number 1 with 103 million views. In January 2010, Charlie bit my finger - again ! was number 1, with 148 million views. By the beginning of January 2011, Justin Bieber was at number 1 with over 400 million views for Baby.

Here is the top 10, as of September 2012:

1. Justin Bieber - Baby ft. Ludacris; 777,240,044 views

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2. Jennifer Lopez - On The Floor ft. Pitbull; 592,450,651 views

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3. Eminem - Love The Way You Lie ft. Rihanna; 492,907,293 views

4. Shakira - Waka Waka(This Time for Africa); 491,196,696 views

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5. Lady Gaga - Bad Romance; 485,167,166 views

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6. LMFAO - Party Rock Anthem ft. Lauren Bennett, GoonRock; 479,731,335 views

7. Charlie bit my finger - again !; 478,436,912 views

8. Michel Telo - Ai Se Eu Te Pego - Oficial (Assim voce me mata); 428,206,129 views

9. Don Omar - Danza Kuduro ft. Lucenzo; 383,570,633 views

10. Eminem - Not Afraid; 359,692,834 views

This post is regularly updated by Deane Rimerman

**** 2012년 8월 2일 기준 ****

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