Much like pantsless subway rides and flash mobs involving dancing in public places, the phenomenon of the "silent disco" -- wherein dozens of people, mostly white people (sorry, fellow crackers, it's true, we're dorky) dance around -- has come and hung around longer than maybe it should have.

But that doesn't mean they're not fun. To wit, a video of this silent disco on Friday night at the Denver Zoo, where "YMCA" seems to get a few people moving, but "Don't Stop Believing" by Journey is where the ish really hits the fan.

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