"But when he came to the studio, I remember I hugged him and I could feel that he had on a bulletproof vest. I couldn't imagine being that successful. I mean, he's a guy who loves rap and wanted to be successful his whole career. Then he finally gets it, and there's this dark cloud over him. He has to be afraid to walk around New York freely. I was like, 'Here it is. You've gotten everything you wanted, and now you're a prisoner of your own fame.' That's sad to me - that you have to walk around in a bulletproof vest after you've sold 20 million records. I found it sad."