A message for "Dear Tata" (Nelson Mandela) outside the hospital in Pretoria where he is being treated. Alexander Joe /AFP/Getty Images hide caption toggle caption Alexander Joe /AFP/Getty Images The Two-Way VIDEO For Nelson Mandela: Johnny Clegg's 'Asimbonanga' June 25, 2013 The anti-apartheid icon and former South African president remains in critical condition at a Pretoria hospital. He's being treated for a respiratory infection. Mandela is 94. In 1999, he danced on stage as Clegg paid tribute.