The Alexandrov Russian Army Twice Red-bannered Academic Song and Dance Ensemble (the Alexandrov Ensemble, for short) is a performing ensemble that serves as the official choir of the Russian Armed Forces. It is known internationally as the Red Army Choir or Red Army Chorus.
The ensemble is made up of a male choir, an orchestra, and a dance ensemble. The songs they perform range from Russian folk tunes to church hymns, from operatic arias to pop music.
They're a fun group to watch. You can find lots of clips on YouTube, but I decided to go with a -- less reverent -- clip for this blog.
Here is the Red Army Choir performing "Sweet Home Alabama" with Leningrad Cowboys, a Finnish rock band.