Luka and Stjepan are one of the 5 acts scheduled to perform at the closing plenary session of the 2013 Rotary International Convention in Lisbon on Wednesday, June 26.
This link is to the Convention Program. The 2CELLOS writeup is on digital screens 34 and 35 (pages 16 and 17 of the actual booklet). It is written in Portuguese. We are not providing a translation since it contains nothing but the brief biographical information available elsewhere.
In summary, they're going to be one of the many many acts performing during a 4 hour special entertainment event for leaders of many nations and huge crowds to celebrate Croatia's entry as the 28th member of the European Union.
They've recorded something new for the event: the theme song from a Croatian television series that was filmed in 1974 and is an adaptation of a 19th century novel (http://hr.wikipedia.org/wiki/U_registraturi_(TV_serija)) "U registraturi." The music is by Arsen Dedic (http://hr.wikipedia.org/wiki/Arsen_Dedic).
The first link is some still images of the recording session in a green screen studio. The second link is an interview.
Additional details - while the link is not currently working, information released by the event planners is as follows.
2CELLOS will play Smooth Criminal in the main part of the celebration, sometime between 11 pm and midnight and they will play again between 00.40 and 1.10. There first performance is supposed to be streamed here:
Another one in Italy, in Salo, just before Aosta: they are starting to appear in the writeups, but there's not a whole lot of information available. What little is showing up is on the italian search engines.
55th Annual International Summer Music Festival: they are scheduled on the 27th of July.
Apparently this was once purely a violin festival that has branched out in recent years.