I don't know where are they from. Maybe from Russia or maybe from Balkan, because they sang Russian and Macedonian song. It song could be downloaded from http://mp3plate.com/music/selamat_jalan.html (on the first and the last list, which the artist is "Selamat Jalan". Another list just Indonesian music).

Hmmm, like I said, I have no clue, sorry … :-