1. PSY's Gangnam Style.
The pop music video from Korean, which has been watched for 1 billion times, make it become the most popular video of all time. Amazing
This is the most-viewed cover song of 2012, attracting 140 million views this year. The video talks about five people using one guitar made an interesting rendition of 2012's most surprising hit song. Nice.
3. KONY 2012
This video, which aims to end Ugandan conflict, sets a record with more than 30 million viewers in a single day in March.
4. Call Me Maybe
This video, covering the song of the summer, kicked off a trend of lip sync videos that spanned from the Harvard baseball team and celebs to Olympians.
This episode featured well-known Obama impersonator Alphacat, and is one of the better known instances of the 2012 trend of Obama and Romney videos.
A mysterious button in the middle of a Flemish town square adds drama if pushed, with hilarious results.
7. Why You Asking All Them Question
Kosher and Spoken Reasons evaluate relationship questions with a comedic rap. This this garnered 39 million views, and almost half of them came from mobile devices.
8. Lindsey Stirling
Lindsey's trademark dubstep violin styles created a lot of buzz this year -- especially in the U.S., Germany and Poland. This video, which was shot by Lindsey's fellow YouTube creator Devin Graham, has over 500,000 likes and 100,000 comments.
9. Facebook Parenting
One father responds to his daughter's Facebook rant by reading her post on video and then shooting her laptop with a gun.
10. Stratos Highlights
This live stream of Felix Baumgartner's free-fall from 128,000 feet shattered previous live stream records with 8 million concurrent views.
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