Despite being Finnish, band uses Russian language. All lyrics, titles and the band's name itself are in Russian.
The band's official name is KYPCK - not KURSK or Kursk.
'Kursk' is a mere transliteration to the Western alphabet.
Write KYPCK [or Kypck] and pronounce /kursk/.
Kursk is a Russian city, mostly famous for the great tank battle that occured nearby in 1943, during WWII, and also after a nuclear submarine that sank in Barents Sea in the year 2000.