Susan Boyle 's performance is most popular YouTube video of 2009 . `` David After Dentist , '' a boy 's hazy pronouncements , finishes a distant second . Comment: `` David After Dentist , '' filmed by the boy 's father as he was clearly still loopy from medication , was a distant second with about 37 million views . YouTube calls 2009 `` biggest year yet '' for online video .
Susan Boyle 's performance is most popular YouTube video of 2009 . `` David After Dentist , '' a boy 's hazy pronouncements , finishes a distant second . Comment: YouTube calls 2009 `` biggest year yet '' for online video .