Pharrell Williams' 'Happy' performed by Russian Red Army Choir

Choir was originally established in 1939 to boost moral by glorifying the revolutionary spirit of the 1917 uprising

The lead singer of the Red Army Choir performing Pharrell Williams' Happy (Still, via Youtube)

The Red Army Choir has released a version of Pharrell Williams’ ‘Happy’.

The bizarre video, uploaded to YouTube three days ago, shows the famous Russian choir in full decorated uniforms letting loose to one of 2014’s most popular song – already covered around the world.

Established in 1939, the Red Army Choir MVD Ensemble is an official ensemble of the Minister of the Interior of the Russian Federation.

While not appearing the most appropriate song, ‘Happy’ fits with the Choir’s original task which was to lift the moral of exhausted troops – usually by glorifying the Revolutionary spirit.

Russians may be in need of a small lift at the start of 2015.

Sanctions imposed by the west in response to the country’s continued shadowy involvement in the Ukrainian conflict has seen the rouble tumble in value, prompting shortages for many Russians used to a sustained period of boom under President Vladimir Putin.

The song has been covered around the globe since its release in January of last year. Watched millions of times on YouTube, it spawned a over 1950 cover versions from 152 countries.