YouTube's most watched videos of 2009!
No 4: Most watched music videos on YouTube
'I'm On a Boat' by The Lonely Island - 48+ million views
The three males' expletive-ridden account of the fact that they are, well... on a boat, was apparently compulsive viewing to almost 50 million of us.
Watch the music video here. (Warning: Some material may offend)
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