YouTube is a video-sharing website headquartered in San Bruno, California, United States. The service was created by three former PayPal employees in February 2005. In November 2006, it was bought by Google for US$1.65 billion.
1. Gangnam Style (Psy) – 2,332,495,001 Views
2. Baby (Justin Bieber featuring Ludacris) – 1,166,467,357 Views
3. Dark Horse (Katy Perry featuring Juicy J) – 950,177,592 Views
4. Roar (Katy Perry) – 916,795,380 Views
5. Party Rock Anthem (LMFAO featuring Lauren Bennett & GoonRock) – 868,132,367 Views
6. Bailando (Enrique Iglesias featuring Descemer Bueno & Gente De Zona) – 862,510,268 Views
7. Love the Way You Lie (Eminem featuring Rihanna) – 861,674,424 Views
8. Waka Waka (This Time for Africa) (Shakira featuring Freshlyground) – 850,835,539 Views
9. Blank Space (Taylor Swift) – 839,543,142 Views
10. Gentleman (Psy) – 834,447,266 Views
Source: wikipedia