Nina Simone (left) and actress Zoe Saldana are seen in this composite image. Saldana has been cast to play the late singer in a film biopic. John Minihan/Frederick M. Brown/Getty Images hide caption

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From coffeehouses to punk clubs, Matt Haimovitz has played his cello in some surprising places. Steph Mackinnon hide caption

itoggle caption Steph Mackinnon

Nina Simone performs at a concert in 1964. Hulton Archive/Stringer/Getty Images hide caption

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Martin Luther King Jr. waves from the Lincoln Memorial on the Mall in Washington, D.C. during the March on Washington. AFP hide caption

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American soul, jazz and blues vocalist Nina Simone (1933 - 2003) relaxes at the Hanover Grand during a reception held for her in London. She is here on a promotional visit and is scheduled to appear on the television show 'Frost On Sunday'. (Photo by Ian Showell/Getty Images) Ian Showell/Getty Images hide caption

itoggle caption Ian Showell/Getty Images