My own personal highlights are the 'guitarist' doing his best Brian May impression (blink and you miss it) and the female lead singer, not quite sure what to do with herself when she has finished singing.
This from the Tatar Information Agency: "From The Republic of Tatarstan State Ensemble of Folklore Music performed “Queen” band’s famous composition “We Are the Champions” in the Tatar language. The video recording was made in December 2009 at the walls of Kazan Kremlin in honour of the Winter Olympic Games in Vancouver to support the Russian team."
(In case you didn't know the Tatars are a large ethnic minority in Russia, numbering over five million there. They also live in many of the other former Soviet Republics such as Uzbekhistan and Ukraine).