Nelson Mandela 1918-2013

US President Barack Obama with Graca Machel.

US President Barack Obama greets South Africa's Jacob Zuma.

Former US Secretary of State Hillary Clinton.

Kenya's President Uhuru Kenyatta

US President Barack Obama (L) and First Lady Michelle.

US President Barack Obama.

South Africans singing the national anthem.

French President Francois Hollande.

Former French President Nicolas Sarkozy.

Mandela's widow Graca Machel.

Brazil President Dilma Rousseff.

Former South African President Thabo Mvuyelwa Mbeki.

South Africans brave the heavy rain for the memorial service.

Former British Prime Minister Gordon Brown.

Former South African President Frederik Willem de Klerk.

Madagascar's Andry Rajoelina

Soldiers and dancers at the memorial service.

From Left: Zindzi Mandela, Zenani Mandela, Makaziwe Mandela, Winnie Mandela Madikizela and Graca Machel.

British Prime Minister David Cameron. Mr Cameron will apologise to Queen Elizabeth II in person for eyebrow-raising comments about how she “purred” down the telephone when he told her that Scotland had rejected independence last week. FILE PHOTO

Sweden's Princess Victoria at the FNB Stadium (Soccer City) in Johannesburg.

Haakon, Crown Prince of Norway at the FNB Stadium (Soccer City) in Johannesburg.

U2 lead singer Bono and South African actress Charlize Theron.

South Africans at the FNB Stadium (Soccer City) in Johannesburg.

A tribute to Nelson Mandela.

The official program for the memorial service.

South Africans at the Soccer City Stadium.

A woman holds a banner at the memorial service.

Song and dance.

A hat worn as a tribute to Nelson Mandela.

South Africans at the Soccer City Stadium.

US President Barack Obama, First Lady Michelle (2R) and former US President George W. Bush (R) at the Waterkloof Air Base in Centurion, South Africa on December 10, 2013 .

A woman in 'Nelson Mandela attire'.

A couple braves the rain at Orlando Stadium in Soweto to attend a memorial service.

Zimbabwe's President Robert Mugabe and his wife Grace (C).

Uganda's President Yoweri Museveni.