What a crazy, delightful ever changing world! Who could have thought that in 2012 young people in Moscow would put on a "flash mob" happening,
dancing to an 83 year old American song written by a Russian born American-Jew (Irving Berlin) whose last name is the capital of Germany.
This is the best mob scene you will ever see!
http://www.youtube.com/embed/KgoapkOo4vg?rel=0
BTW, I've stood almost exactly where this video was shot. Check the photo below (taken in April, 1994)...
...against the videos at time-stamps 1:28, 2:40 and 4:25.
Note that his building is one of several built during the Stalin era which share a certain look, in this case the building is part of the Moscow State University, which might explain why a lot of people in the video look like they could be college students.