U.S. President Barack Obama delivers his speech at the memorial service for late South African President Nelson Mandela at the First National Bank soccer stadium, also known as Soccer City, in Johannesburg
Brazilian President Dilma Rousseff (R) arrives at the First National Bank (FNB) Stadium, also known as Soccer City, ahead of the national memorial service for the late former South African President Nelson Mandela in Johannesburg
Former U.S. President George W. Bush (top R) talks to former British Prime Minister Gordon Brown (top L) as they attend the memorial service for late South African President Nelson Mandela at the First National Bank soccer stadium
U.S. President Barack Obama (C) shares a moment with Denmark's Prime Minister Helle Thorning-Schmidt (L) as his wife, first lady Michelle Obama looks on (R) during the memorial service for late South African President Nelson Mandela at the First National Bank stadium
Former South African President Frederik Willem de Klerk (C) arrives for the memorial service for late South African President Nelson Mandela at the FNB soccer stadium in Johannesburg
Britain's Prime Minister David Cameron attends the Memorial Service for former South African President Nelson Mandela at the First National Bank Stadium
South African President Jacob Zuma holds the official program for the memorial service for late South African President Nelson Mandela at the FNB soccer stadium in Johannesburg