If you’re ever questioning whether someone or something has actually made it to the big leagues, ask yourself one simple question: do grandma and grandpa know about it? If the answer is yes, then you have yourself a massive pop culture phenomenon.

As if we didn’t need any more confirmation that ‘Gangnam Style’ is one of the biggest viral hits of all-time, it’s always nice (and hysterical) to see older people are aware of PSY’s awesome dance moves and catchy little tune.

As part of their series 'Elders React to Viral Videos,' Fine Brothers Productions came up with the genius idea to tape said grandmas and grandpas watching 'Gangnam Style' for the first time. Some have heard of the Korean pop sensation while others are completely oblivious, but all produce hilariously charming reactions.

There are a few pretty critical elders who try to analyze this whole “PSY” character, but then there are others who jump right into this craze and get all 'Gangnam Style' on us right on camera! Who knew grandma could do such an impressive wiggle move?

To sum it up, Rock likes the babes, Diane gets a little crazy reenacting the chorus, and Melvin can’t seem to understand why PSY is wearing those glasses the whole darn time.

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