Justin Bieber

This video for Baby with Ludacris has so far managed to get over 800 million views, but with how fanatical his fans are it could mean only 100 different people have actually watched it. This shows how the music industry has to use Youtube to its advantage because 800 million views is a seriously high number, but a number that must be a dream for the marketing department.
This Post Belongs To Most viral videos of all time