What do you call a one man flash mob? Canadian. Relax. It's the weekend.
Bonus: Check out this sweet routine from an event called Shuffle The House from a few weeks ago in, I think, Switzerland.
Bonus 2: A nice two woman Charleston routine from Portugal by Diana Rocha and Abeth Farag. According to an earlier version of this routine, it was partially choreographed by Nina Gilkenson.