Atomik Harmonik is a pop-folk music group from Kamnik, Slovenia. Their debut single "Brizgalna Brizga" stayed at #1 in the Slovenian pop charts for several months. Their other hits include "Hop Marinka", "Na seniku", "Od hr'ma do hr'ma", and their European hit "Turbo Polka", which hit the charts in Germany and Austria, bringing the group fame across Europe.

Source: Wikipedia (https://en.wikipedia.org/wiki/Atomik_Harmonik)