Your Song Rita Ora
As South Africa announces ten days of mourning for their former President, we take a look at the reactions and tributes coming in from leaders and celebrities around the world.
"We've lost one of the most influential, courageous and profoundly good human beings that any of us will share time with on this earth," says Obama. "He doesn't belong to us now, he belongs to the ages."
"A great light has gone out in the world... a towering figure in our time; a legend in life and now in death - a true global hero".
"One of the true giants of the past century," the actor said. "Nelson Mandela was a man of incomparable honour, unconquerable strength, and unyielding resolve - a saint to many, a hero to all who treasure liberty, freedom and the dignity of humankind."
"What an honour it was to step into the shoes of Nelson Mandela and portray a man who defied odds, broke down barriers, and championed human rights before the eyes of the world," the Hollywood actor said. "My thoughts and prayers are with his family.''
"After hearing the tragic news, I just want to say what an extraordinary and inspiring man Mandela was, and my thoughts and prayers are with him and his family right now".
Ban Ki-Moon says Mandela "was a giant for justice and a down-to-earth human inspiration."
"That sense of principle, tough mind, tender heart, was Nelson Mandela."
"What I will remember most about Mr. Mandela is that he was a man whose heart, soul and spirit could not be contained or restrained by racial and economic injustices, metal bars or the burden of hate and revenge.''
Flowers and letters of affection and thanks are placed by the statue of Nelson Mandela in Parliament Square.
A letter of thanks is left at the base of Nelson Mandela's statue.
"Tata, we shall miss you - but know that your spirit and example will always be there to guide us to the vision of a better and more just South Africa."
"We will remember him as a man of uncommon grace and compassion, for whom abandoning bitterness and embracing adversaries was not just a political strategy but a way of life."
"He was a unifier from the moment he walked out of prison. We are relieved that his suffering is over, but our relief is drowned by our grief."
"It's not just what he did but the way he did it that makes him so special. He did it with a grace and a dignity that I think really inspired people everywhere."
"It was as if he was born to teach the age a lesson in humility, in humour and above all else in patience"