Since launching in 2005, YouTube has become the second largest search engine on the internet. This video-sharing site uploads 300 hours of content every minute and processes more than 3 billion searches a month. It's bigger than Bing, Yahoo!, Ask and AOL combined! With the insane amount of content on YouTube, we of course had to take a look at the Top 5 Videos of All Time.
Read MoreYouTube: Watch the Most Viewed Videos of All Time
in Viral Video, Music