Nelson Mandela with Aishwarya Rai, Obama

Aishwarya Rai and Nelson Mandela (Facebook)

Will Smith and Nelson Mandela (Facebook)

Naomi Campbell: Nelson Mandela has stood as a figure of strength, hope, freedom, selflessness and love, and I join everyone across the world in mourning his passing. However, he was much more than just a figurehead to me - he was my mentor, my honorary grandfather, my Tata. Since meeting him in 1993, he guided me and gave me a reason for being in the tough times of my life. He changed my perception of the world. (Facebook)

Nelson Mandela and former President Bill Clinton (Getty Images)

Barack Obama: "Madiba’s passing is rightly a time of mourning, and a time to celebrate a heroic life." (Facebook)

Cristiano Ronaldo: Thankful Madiba for your legacy and your example. You"ll always stay with us. (Facebook)

Oprah Winfrey: One of the great honors of my life was to be invited to Nelson Mandela's home, spend private time and get to know him. (Facebook)

Michael Jackson was proud to call Nelson Mandela. (Facebook)

Nelson Mandela and Princess Diana (AP)

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