Nick Cannon (Getty Images)

In The Observer's 2011 profile of Nick Cannon, his fellow America's Got Talent personality Sharon Osbourne told us: “He doesn’t sleep... You see him taking 20-minute naps between takes.” She added that Mr. Cannon has also been eager to restart his music career. “We talk about it a lot. Nick wants to do everything.”

Mr. Cannon, though, will have a slightly less busy schedule, as he's departing the New York morning show that he has hosted on 92.3, citing health concerns. He was hospitalized for a second time in 2012 this week, due to what he claims was a blood clot in his lungs. About his own ambitions, Mr. Mariah Carey told us, "I call it an entrepretainer. It’s a businessman and an entertainer at the same time. That’s kind of what you have to be." The entrepretainment shall be on hold for a bit as Mr. Cannon recovers.