The video is a Korean wedding song (I think) that these girls sang for my brother and his fiance who are getting married in Playa del Carmen this May. I met the two Korean girls at the hostel. They had just spent a couple weeks in Cuba and I had a lot of questions about it. We talked and had tea and decided to go to Teotihuacán together the following day. Teotihuacán is a 2000 year old pyramid structure and former city that apparently housed around 200,000 people at the time. It is just outside Mexico City. Not very much is known about the society that occupied Teotihuacán; most of the names and history come from the subsequent Aztec discovery of the site. The largest pyramid at Teotihuacán, the Pyramid of the Sun, is apparently the third largest in the world behind the Great Pyramid of Giza and another pyramid in Mexico.