Former South African President Nelson Mandela, left, with former US President Bill Clinton, right, at Mandela's home in Johannesburg Tuesday July 19, 2005. Clinton had lunch with Mandela and is later scheduled to attend an annual lecture in honour of Mandela who turned 87 Monday. (AP Photo/Steve Lawrence) ** SOUTH AFRICA OUT **
The memorial and funeral of Nelson Mandela will be attended by thousands world leaders and statesmen amongst them - and watched by billions.
But what did the former South African president think of them?