Russell Simmons is prolific.
The hip-hop mogul is the founder of Def Jam Records, Phat Farm clothing company, All Def Digital online content company and the list goes on.
The secret to having multiple successful businesses operating at once is to hire people who are smarter than you to run the day-to-day operations of your company, Simmons tells CNBC.
"You put your head down and you work very hard until you attract the right people," says Simmons, 58.
Every manager at Simmons' various companies is better than he is at that particular task, he says. And that's intentional.