Watch This Angry Grandpa Flip Out About Rebecca Black's "My Moment", & Injure His Back In The Process | Sharapova's Thigh

So apparently this "Angry Grandpa" guy is one of those YouTube sensations? I'd never seen one of his videos until this one of him critiquing Rebecca Black's "My Moment", but I can see why he is.

This is gold, Jerry. It's also very NSFW(language)

Oh man... Can't stop laughing.

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