The letter was also signed by Ice Cube, Roland Martin, Don Jackson, Earl 'Butch' Graves and Junior Bridgeman.
Email, like any social tool, is an opportunity to build relationships, and more importantly, build up people.
Richard Branson, Robert Herjavec and more share formative experiences that went on to shape their careers.
Read about the business leaders who dominated headlines in 2014 and set the stage for the year ahead -- for better or for worse.
For the first time, women have taken the reins of some of the world's largest corporations. The challenges they face are anything but new.
Mary Barra, the first-ever female CEO of a major global automaker, has boldly accepted responsibility for an ignition defect that resulted in 12 deaths.