Recently, the Russian cities of Moscow and St. Petersburg have been the victims of mobs terrorizing the cities armed with the most ferocious of weapons: The bubble.

Or maybe Russia just wanted a little fun this April! Check out more of the bubble flash mob pics below.

If that doesn't put a smile on your face, I don't know what will. I love all the dance flash mobs, but bubble blowing when everyone can participate sounds way more fun.

Lovelies, what's the best flash mob you've seen or been a part of?

Via: Buzzfeed