Scala & Kolacny Brothers

I am not sure which ad it was but but the song of the ad Every Breath You Take (originally sung by U2) by Belgium choir Scala & Kolacny Brothers catches my attention. I Shazam the song and I found this Belgium choir has been out for a while and they sing quite a bit of pop songs which are specially made arrangements of well-known musicians and bands such as Oasis, Björk, Radiohead, U2, Nirvana, Depeche Mode, Muse, Rammstein, etc. Their songs have been on movies and tv shows as well. I don't think you can download their songs on iTune or Spotify. One of the album is only available to download in UK and US.... but you can listen to their songs on YouTube, they're really good!