The brothers Charlie (right) and Harry in 2007 published a sensational video clip of little Charlie biting little Harry's finger. The video has been viewed nearly 500,000,000 times on YouTube. Now a little grown up, they've launched a production company Viral Studios and teamed up with video distribution site Rightster on a series of web shows including one called Kings of YouTube, which will see the boys watching and reviewing new viral videos as they break. Click on the image below to watch the video that started it all.