Audrey Hepburn's portrait on display at "The Transformative Power of Art" exhibition, at the United Nations headquarters in New York.[Photo/un.org]

The other 15 are Pakistani rights activist and Nobel Peace Prize laureate Malala Yousafzai, musician from Gabon Pierre-Claver Akendengue, American author Maya Angelou, American folk singer Joan Baez, British actress Audrey Hepburn, Russian painter Vassily Kandinsky, Egyptian singer Umm Kulthum, India’s film director Satyajit Ray, Grammy Award-winning South African singer and civil rights activist Miriam Makeba, French philosopher Edgar Morin, Iranian actress Fatemeh Motamed-Arya, Ugandan poet Okot p'Bitek, Brazilian social documentary photographer Sebasti Salgado, Nigerian playwright and poet Wole Soyinka, and Kenyan writer Ngugi Wa Thiong'o.