Classical music and pop are two different universes, each with its own difficulties, peculiarities, depth and artistic dignity. In Italy, I think there is a fairly clear line of demarcation, but the history of music is full of fusion. Popular and classical music have always found points of contact, of crossing, exchange, both drawing mutual profit.

When you sing opera you are very far from the people, you are onstage, and between you and the people there is the orchestra. So you have to launch your emotions very, very far. When you sing pop, you are singing very close - the microphone is very close to your mouth. You can whisper your emotions into the microphone.

Listen to what others tell you about your voice. If you're only singing to please yourself, you might as well just sing under the shower. But if you're singing for others, you are reliant on them to ask you to sing.

I've been to almost every country in the world, and the most frustrating thing for me has been that my schedule has always been so busy that there's so little time before and after performances to explore where I'm visiting.

I've always been on the side of science that tries to help man. I play an active part with the foundations I'm involved in. Science gives hope.

Every audience has its character; I like America - they love me. I suffer from stage fright, but in America not so much.

My life experience has taught me nothing happens by chance. Even the idea of the ball in a roulette game: it's not chance it ends up in a certain place. It's forces that are at play.