When I was writing the Destiny's Child songs, it was a big thing to be that young and taking control. And the label at the time didn't know that we were going to be that successful, so they gave us all control. And I got used to it.

Playing Etta James in the movie 'Cadillac Records' really changed me. It was a darker character, and I realized that if anything is too comfortable, I want to run from it. It's no fun being safe.

When I was writing the Destiny's Child songs, it was a big thing to be that young and taking control. And the label at the time didn't know that we were going to be that successful, so they gave us all control. And I got used to it.

With a lot of success comes a lot of negativity.

I always have breakfast, say, scrambled egg whites, a vegetable smoothie, or whole-grain cereal with low-fat milk. For lunch and dinner, I eat a lot of fish and vegetables. And throughout the day, I try to stay hydrated.

I think it's healthy for a person to be nervous. It means you care.

I always treat myself to one meal on Sundays when I can have whatever I want. Usually it's pizza, which is my favorite indulgence.