Tesla CEO Elon Musk

Tesla CEO Elon Musk

Both Tesla Motors' CEO Elon Musk and General Motors' CEO Mary Barra were listed by Fortune among the World's 50 Greatest Leaders.

Here's how Fortune compiles its 50 Greatest list:

"How Fortune built this year’s list: In compiling the 2015 list of the World’s 50 Greatest Leaders, we gathered advice, fittingly, from more than two dozen of the world’s best minds. Their suggestions were invaluable, but the editors of Fortune accept full responsibility for the final list. Here is our full list of nominators: Mildred Apenyo, Dominic Barton, Kathy Bloomgarden, Ian Bremmer, Kenneth Chenault, Caitlin Colegrove, Sen. Christopher Coons, Rohitesh Dhawan, Susan Desmond-Hellmann, Charlotte Florance, Laurie Garrett, Ilene Gordon, Karl-Theodor zu Guttenberg, Richard Haass, Rosabeth Moss Kanter, Thomas Kolditz, Anand Mahindra, Rita Gunther McGrath, Denise Morrison, Alan Mulally, Joseph Nye, Jeffrey Pfeffer, Zhang Ruimin, Carol Sawdye, Witney Schneidman, Peter Thiel, Paul Volcker, and the Fortune staff."

Fortune's list is diverse, including stars such as Lebron James and Taylor Swift, as well as religious leaders like Pope Francis and even relative unknowns like Tri Rismaharini.  Check out the full list at the link below.

Source: Fortune