Nick Cannon is feeling great these days, and attributes that to a healthy, organic-based lifestyle. Back in January, Cannon was diagnosed with lupus nephritis, and experienced extreme fatigue as a result. These days, he's meditating and working out "first thing in the morning. That really gets my energy going all day. I am in the best shape I have ever been in. I haven't had any salt, red meat, fast food, just chicken and fish. I've been juicing a lot and eating organic raw vegetables. I feel so great. I don't wake up tired."

He's also energized by his job as host of "America's Got Talent," which returns to NBC May 14 with a new judge joining the panel alongside Sharon Osbourne and Howie Mandel — shock jock Howard Stern. "This has been the most fun I've had yet," says Cannon, who relishes his role as "enthusiastic cheerleader" for the contestants and their loved ones. "I came up in the world of talent shows as a young entertainer and I know what it's like." As for Stern's addition, "Howard and I always have had this love/hate relationship. He would say things about me that I didn't agree with and I would say things about him that he wouldn't agree with," Cannon reveals. "But we've become the best of friends. We've always had respect for each other. We disagree about some things but at the end of the day I have the utmost respect for him."

Cannon is also busy with other projects, including an ongoing online video diary about dealing with his medical condition called "NCredible Health Hustle," the upcoming BET sketch comedy show "House Husbands," and the Nickelodeon movie "Rags," a Cinderella-esque musical starring Keke Palmer that he produced. It premieres May 28.

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