Most Watched YouTube videos (Global):
1. Susan Boyle – Britain’s Got Talent (120+ million views)
2. David After Dentist  (37+ million views)
3. JK Wedding Entrance Dance (33+ million views)
4. New Moon Movie Trailer (31+ million views)
5. Evian Roller Babies (27+ million views)

Most Watched music videos on YouTube (Global)*:
1. Pitbull – I Know You Want Me (82+ million views)
2. Miley Cyrus – The Climb (64+ million views)
3. Miley Cyrus – Party In The U.S.A. (54+ million views)
4. The Lonely Island – I’m On A Boat (48+ million views)
5. Keri Hilson – Knock You Down (35+ million views)

Then, to determine the fastest rising search terms for each month, we examined the billions of queries that people searched for on YouTube (through December 15):

Fastest Rising YouTube search terms by month (Global):
January: inauguration
February: christian bale
March: the climb
April: susan boyle
May: pacquiao vs hatton
June: michael jackson thriller
July: michael jackson
August: usain bolt
September: kanye west
October: paranormal activity
November: bad romance
December: tiger woods

Fastest Rising YouTube search terms by month (U.S.):
January: obama inauguration
February: on a boat
March: watchmen
April: susan boyle
May: pacquiao
June: michael jackson thriller
July: wedding
August: send it on
September: kanye west
October: paranormal activity
November: adam lambert
December: tiger woods