Youtube most viewed videos -
1. Go to the http://www.Youtube.com
2. Enter * (to get all youtube videos in search result) in the search text box and click on 'Search' button
3. Youtube will show you millions of videos with default search options.So to get the most viewed video we have to change the Search Options. Click on the 'Search Options' to set the search option.
5. In the second column of the search option 'Sort by:' click on 'View Count', that is sort the search result by view count!!!!
That's it, so much easy. And you get all time most viewed videos, irrespective of your country/location.
P.S. - Also try following search terms -
enjoy the Youtube!!!!!