Can you put some context to this perfomance?
It's lezginka, traditional dance of Caucasus people. Cossack variant.
Added performance with shashka (weapon) is not traditional thing, just trendy last years.
Indeed it's great animation and quite a catchy tune. I was wondering what it is and I've found out it's :
Now I'm wondering what the lyrics are about ?

Can You enlighten me ?
Instead of fire - there's only smoke.
Instead of warmth - cold.
Another day is crossed out on the calendar grid.
The red shining sun has completely burned out,
And this day goes out with it,
And over a glowing city, the shadow will fall
We want changes!
It's the demand of our hearts.
We want changes!
It's the demand of our eyes.
In our laughter, in our tears, and the pulse in our veins.
We want changes!
And changes will begin...
Bright electric light continues our day,
And the box of matches is empty,
But in the kitchen, like a blue flower, gas burns.
Cigarettes in our hands, tea on the table,
So this scheme is easy,
And there's nothing more left, it's all up to us.
We want changes!
It's the demand of our hearts.
We want changes!
It's the demand of our eyes.
In our laughter, in our tears, and the pulse in our veins.
We want changes!
And changes will begin...
We cannot brag about the wisdom in our eyes,
And our gestures are not very skilled,
But even without all of that - understanding remains.
Cigarettes in our hands, tea on the table,
That's how the circle is filled,
And suddenly we've become scared to change something.
http://russmus.net/song/7257