Susan Boyle ] performance is most popular YouTube video of January . This year is the first time YouTube has released a year-end list . `` David After Dentist , '' a boy 's hazy pronouncements , finishes a distant fifth . Wedding dance , skating babies and YouTube also make the list . YouTube calls 2009 `` biggest year yet '' for online video .
Susan Boyle ] performance is most popular YouTube video of January . `` David After Dentist , '' a boy 's hazy pronouncements , finishes a distant fifth . Wedding dance , skating babies and YouTube also make the list . YouTube calls 2009 `` biggest year yet '' for online video .