It sounds like the larger amount of those choir guys learned the lyrics from some mariachis.

As a display of honour and gratitude Daft Punk performed the timeless and revered Russian Police Choir Song: 'We Will Come Under Cover Of Night And Murder Your Entire Family, And You Will Spend Your Remaining Years In An Irkutsk Gulag. Also, Please, Where Do You Keep The Stolichnaya? - In Middle C.'

I dream of having hair that gorgeous.