Via my daughter. It's a suckers game to try to analyze what is popular on YouTube, but the view count for this video is just staggering. It apparently also has about a thousand imitators. If I am going to watch a cover video, why wouldn't I rather one with LA cheerleaders? But I have to credit Harvard as a trendsetter. Who knew there could be a whole new genre of videos about lip syncing pop tunes in a moving passenger van?