Sounds of Soweto Gospel Choir to echo through Mandela’s memorial

The sounds of the Soweto Gospel Choir will guide celebrate the life and mourn the loss of their biggest fan, Nelson Mandela, tomorrow as allies and enemies from across the world gather at the memorial service to honour his life in Johannesburg.

More than 90 leaders from all over the world will attend tomorrow’s memorial, international tributes will be led by UN Secretary General Ban Ki-moon, and Barack Obama and Raul Castro will share a podium in his honour.

International Correspondent John Irvine caught up with the Soweto Gospel Choir to find out how they have been preparing.