Put in perspective that is probably in excess the number of times the most favored "I Love Lucy" show has been seen. Or put another way, you've got a music video with the same eyeball impact as the highest rated television show ever.
That says to me that either advertising on Youtube is a bargain or advertising on TV is way over priced :-)
[1] http://tvbythenumbers.zap2it.com/2014/02/10/the-walking-dead...