If you've never seen a flash mob you are missing something.
A group of generally well intentioned young people get together to overwhelm an area just for the fun of it.
But they do it with choreography!
And with the popularity of the smash television hit 'Glee' it is an even more popular activity.
Flash mobs have taken over super markets and other stores in America but here is a group, a rather large group of beautiful young and slightly less than young motivated performers doing the flash thingy to an ABBA theme in Israel.
It's a real treat.
Turn on the sound,