Just...wow.

From the YouTube description:

"The Leningrad Cowboys is a Finnish rock and roll band famous for its humorous songs and concerts featuring the Soviet Red Army Choir.
Currently, the band has eleven Cowboys and two Leningrad Ladies. The songs, all somewhat influenced by polka and progressive rock, and performed in English, have themes such as 'vodka', 'tractors', 'rockets', and 'Genghis Khan', as well as folkloric Russian songs, rock and roll ballads and covers from bands as diverse as The Beatles, Led Zeppelin, and Lynyrd Skynyrd, all with lots of humour.
The Red Army Choir (Choir Aleksandrov) is a performing ensemble that served as the official army choir of the former Soviet Union's Red Army. The choir consists of a male choir, an orchestra, and a dance ensemble. The songs they perform range from Russian folk tunes to Church hymns, operatic arias and popular music.
In 1991, The Red Army Choir participated in Roger Waters' The Wall concert celebrating the fall of the Berlin Wall. They performed an anti-war song "Bring the Boys Back Home".
Since the collapse of the Soviet Union, the Red Army Choir has continued performing, entertaining audiences both inside and outside Russia."

"Real" post after work. And by "real," I mean more videos and links.