This video in Bosnian by Al Jazeera Balkans was posted October 2013. This is a 28-minute interview--wish we had translation:
Broad translation of text under posted video: "The contemporary urban fairy tale: Two talented cellists. A cover of "Smooth Criminal" posted on YouTube and 24 hours later they became an Internet sensation. A year, two albums, and a tour later: they have the world at their fingertips."