Gallery: Happy Birthday Madiba

A man walks past a banner reading "Thank You Mandela, God blesses Africa," with the image of former President Nelson Mandela outside a Methodist church in Cape Town. Photo: AP

Pupils of Parkview Junior School sing happy birthday to Nelson Mandela in Parkview, Johannesburg on his 95th birthday. 180713. picture: Chris Collingridge 171

Children hold placards as they gather to wish to former President Nelson Mandela happy birthday at a township school in Atteridgeville near Pretoria. Photo: Reuters

A woman paints a happy birthday message on a wall as she and others celebrate former President Nelson Mandela's birthday in Cape Town. Photo: AP

Children hold placards as they gather to wish former President Nelson Mandela happy birthday outside the Medi-Clinic Heart Hospital. Photo: AP

Ayanda Mkhize, 7, writes a get-well message on a painting of Nelson Mandela made by another class at the St Mary's Diocesan School for Girls outside the Mediclinic Heart Hospital. Photo: AP

Undidentified woman walks past ruling party posters with former South African President Nelson Mandela's face at the Mediclinic Heart Hospital where is being treated in Pretoria, South Africa Thursday, July 18, 2013. Mandela will spend his 95th birthday in hospital on Thursday, but was said to be making "remarkable" progress. (AP Photo/Themba Hadebe)

FILE - In this Wednesday, June 12, 2013 file photo, a painting depicting former South African President Nelson Mandela is featured on the side of a public bus in Port-au-Prince, Haiti. Photo: AP

Children hold placards as they gather to wish former President Nelson Mandela happy birthday outside the Medi-Clinic Heart Hospital, where he is being treated, in Pretoria. Photo: Reuters

A child from a community group from Pretoria holds flowers and sings religious songs to show appreciation and support for former South African President Nelson Mandela. Photo: AP

A banner with images of former South African president Nelson Mandela, right, outside the St. George's Cathedral in Cape Town. Photo: AP

Pupils of Parkview Junior School sing happy birthday to Nelson Mandela in Parkview, Johannesburg on his 95th birthday. 180713. picture: Chris Collingridge 229

Children from Denver Primary school sang and prayed for Nelson Mandela on his 95th birthday. Picture: Antoine de Ras, 18/0702013

Pupils of Parkview Junior School sing happy birthday to Nelson Mandela in Parkview, Johannesburg on his 95th birthday. 180713. picture: Chris Collingridge 348

Children from Denver Primary school sang and prayed for Nelson Mandela on his 95th birthday. Picture: Antoine de Ras, 18/0702013

Children sing Happy Birthday to former President Nelson Mandela at a township school in Atteridgevile near Pretoria. Photo: Reuters

Children hold placards as they gather to wish to former President Nelson Mandela happy birthday at a township school in Atteridgeville near Pretoria. Photo: Reuters

A woman stands in front of posters and get well messages outside the Mediclinic Heart Hospital, where the ailing Mandela is being treated. Photo: Reuters

Learners from the Melpark Primary School in Johannesburg sing Rihanna's hit "Diamonds" referring to former president Nelson Mandela as they celebrate the 95th birthday of Mandela. Photo: AP

File photo: Children hold balloons and flowers as they gather to wish to former President Nelson Mandela happy birthday outside the hospital where he is being treated in Pretoria. Photo: Reuters

Well-wishers sing as they gather to wish former President Nelson Mandela happy birthday outside the hospital where he is being treated in Pretoria. Photo: Reuters