June 2, 2012 It's YouTube's 7th birthday... and you?ve outdone yourselves, again Edit Delete Tags Autopost Source: http://feedproxy.google.com/~r/youtube/PKJx/~3/M8RiT2KuuC0/its-youtubes-7th-birthday-and-youve.htmlNicole Richie Justin Bieber Katy Perry