Before he became a world-famous musician, the 1999 College graduate worked as a management consultant for Boston Consulting Group, where … We have a GREAT service to help you contact John Legend’s agents about specific business enquiries – request more details by emailing: bookings@thehandbook.com. Music superstar and political activist John Legend sat down with CNBC's John Harwood to discuss a range of issues, including his time working as a business management consultant. "I was a management consultant… Many businesses and events are interested in contacting John Legend’s management team for potential commercial opportunities and business-to-business engagements. Legend is actually a nickname, and the story as to how the 39-year-old crooner was dubbed "Legend" goes back a couple of years... back to … John Legend reveals what a boring corporate job in his 20s taught him about life and success. John Legend has a message for Penn students stuck in — or now pursuing — consulting jobs: never lose sight of your true dreams. ... corporate jobs," Legend tells CNBC Make It.