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Paul McCartney performed not once but twice at the Grammy Awards last night, much to the apparent chagrin of plenty of viewers. If you thought that "Who Is Bon Iver?" Tumblr was bad, you're going to break a desk once you see how many people clearly did not recognize Sir Paul by his name or his appearance...or his music. Seriously, the tweets you can read below have not been doctored in any way. There are plenty more over at BuzzFeed.
