Don't Beat(les) Yourself Up Over It

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Sir Paul McCartney brought down the house last night at the 2012 Grammys, performing first a new Valentine's Day-themed number and then some Abbey Road-era classics alongside the likes of Bruce Springsteen and Dave Grohl.

Unfortunately, there are still people in this world who don't know the former Beatle, judging by some people's reaction on Twitter.

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