YouTube used criteria such as the 'most shared, most discussed, top rated and general popularity" to determine it's list of clips that people were thinking and talking about most and released the results on Thursday. The most viewed clip " Battle at Kruger" was viewed more than 21 million times! Others include the Obama Girl video and Leave Britney Alone with 4 million and 14 million respectively. With classics like these, who needs TV? The Globe and Mail has more.