Amazing Chorus

[Conan71]

Along the lines of the flash mob video that Guido shared, here's a cool one.  If you don't have time for the whole thing, the first two minutes is all you really need to see and hear:

[guido911]

Those folks suck. jk.

Excellent post. Thanks.

[custosnox]

very cool

[Conan71]

Check these folks out, interesting medley.  There's plenty more featuring them on YT.