Video interview from German social online TV Joiz, published 19 August 2014. Questions are in English with interviewer translating into German. Part of this is bound to end up in the Funniest Moments Part 3: Interviewer asks Luka about callouses on his hands and Stjepan takes it from there. As the title/description under the video states: 2CELLOS laugh continuously during broadcast. After the ambiguous sentence "When you play every day, then it gets hard" the Croatian Duo 2CELLOS go out of control and can no longer keep from laughing." As Luka says, "You can tell I am the serious one."