I'm fairly sick of flash mobs at this point, but this one caught my eye because it has the elements that made flash mobs so great in the first place:
Not that this this routine stunningly choreographed. It's pretty clumsy actually. It begins with the head teacher of Bell Baxter in Scotland scanning the assembly room as the intro of YMCA begins blaring. It seems like any other ordinary day with their ordinarily stern head teacher searching for potential student shenanigans.
But what occurs is kind of magical. He erupts into a dance routine which genuinely shocks the student population. The head teacher is joined by faculty and others for a dance routine that makes the student population crack up. It was unexpected and it was spectacle that was enjoyed.