This is a picture of, from right to left, British Prime Minister David Cameron, Danish Prime Minister Helle Thorning-Schmidt, and American President Barack Obama. They appear to be taking selfies together at Nelson Mandela's funeral, which has caused some rather negative comments from people in the public domain. Don't get me wrong, I can see why, but I can also see there's another very interesting point people are missing out on the internet here.
Mandela selfie-ing with Béyonce.
Mandela posing with Bono (left), and with Michael Jackson (right).