Thanks to sivizeko for this video about 2CELLOS working on new music video at Antonio Gandusio theater in Rovinj for 2016! Looks like it may be a Led Zeppelin song and there are some costumes similar to "Thunderstruck" . . .we NEED more videos! Seems like a long time . . .
Article title: "Jelena Rozga: "Elton John and 2CELLOS will forever have a special place in my heart"
And I'm throwing quick/bad Google Translate translation here for what it's worth:
"The singer and dancer Jelena Rozga visited her boyfriend musician Stjepan Hauser in the US city of Las Vegas, the time spent together will keep the romantic memory, writes story.hr.
"Neither kilometers, neither the city nor the continents can not be an obstacle when two people love and want to be together. Las Vegas is for us a little dream vacation that both soon want to repeat. Love triumphs over every distance, and was responsible for a smile on our face. There's this old saying, 'What happens in Vegas, stays in Vegas' and we will be and we abide by the famous sentences and keep certain details of the way for us, "said the singer, who enjoyed a short vacation.
Cellist Stjepan Hauser was with his his partner in 2CELLOS, after a big tour of South America hosted a concert by Elton John.
"Elton John and 2CELLOS the spectacular Caesars Palace will forever have a special place in my heart, because it was coming night of love. And just getting to know Elton, this is something special. enchanted me his spontaneity, friendliness and sense of humor, "revealed, adding that the company's sake was only two days.
Las Vegas has something special, as well as their love."
2CELLOS played in Buenos Aires on 23 Sept 2015 but can't tell for sure when this live radio appearance aired (posted to YT 25 Sept. 2015). They played three songs in the studio of Buenos Aires Metro 95.1 on program "Basta de Todo":
Here is a 4+ minute interview that seems to be from a local Monterrey, Mexico TV program before the performance at Festival Santa Lucia. It is in English but unfortunately the translator talks over the English and makes the English hard to hear:
And here is another short interview from Plan B (not sure where this appeared) about their appearance in Monterrey:
Although it was recorded in September, this version was uploaded December 2015. 2CELLOS makes their appearance at the 40 second mark.