A child waves goodbye to a statue of Nelson Mandela as other visitors sign the condolence register at the Nelson Mandela Centre of Memory in Johannesburg, South Africa, Saturday Dec. 7, 2013. AP Photo/Peter Dejong A man draped in the South African flag holds his daughter as he poses for a picture with a statue of Nelson Mandela at the Nelson Mandela Centre of Memory in Johannesburg, South Africa, Saturday Dec. 7, 2013. Visitors take pictures at the Nelson Mandela Centre of Memory in Johannesburg, South Africa, Saturday Dec. 7, 2013. A Kaiser Chiefs soccer fan who was running to a match turns around to show his headwear adorned with picture of Nelson Mandela as he passes outside the Nelson Mandela Centre of Memory in Johannesburg, South Africa, Saturday Dec. 7, 2013. Nelson Mandela Museum Chairperson Nozuko Yokwana, left, attends a remembrance ceremony for former South African President Nelson Mandela in Qunu, South Africa, Saturday, Dec. 7, 2013. South Africans erupted in song, dance and tears on Friday in public and emotional celebrations of the life of Nelson Mandela, the anti-apartheid leader who bridged this country's black-white divide and helped avert a race war. AP Photo/Schalk van Zuydam JOHANNESBURG (AP) - South Africa readied itself for the arrival of a flood of world leaders for the funeral and memorial services for Nelson Mandela as thousands of mourners continued to flock to sites around the country Saturday to pay homage to the freedom struggle icon. At Mandela's house in the Johannesburg neighborhood of Houghton, more than 100 people, black and white, gathered in the morning where they sang liberation songs and homages to Mandela. Children danced to the singing from the swaying crowd as hawkers nearby sold Mandela regalia. Among those who have already indicated that they will be travelling to South Africa to honor Mandela, who died at his Johannesburg home at the age of 95 on Thursday night, are U.S. President Barack Obama and his two predecessors, George W. Bush and Bill Clinton. Brazilian president Dilma Rousseff will also be among the guests. A week of mourning, with several events planned, has been declared by the government. Sunday has been declared a national day of prayer and reflection, while a national memorial service is scheduled to be held at a Johannesburg stadium where Mandela made his last public appearance for the closing ceremony of the 2010 soccer World Cup. Official memorial services will also be held in all of South Africa's provinces and regions over the next week. Mandela's body will lie in state from Wednesday till Friday at the Union Buildings in Pretoria, the capital. The state funeral and burial for the Nobel peace prize laureate will be held in his rural hometown of Qunu in the Eastern Cape Province on Sunday Dec. 15. The state airline, South African Airways, has laid on special charter flights to ferry invited dignitaries to the funeral. The government has announced that a special sitting of the two houses of parliament - the National Assembly and the National Council of Provinces - will be held on Monday to pay tribute to Mandela, the country's first black and democratically-elected president.