The moment I worked with him on “Love the Way You Lie,” I wanted to work with him again, and we did “Love the Way You Lie Part 2.” And then I wanted to work with him again. [Laughs.] I just love working with Eminem. He’s just one of my favorite rappers, and his lyrics—he’s a true poet, and I enjoy that about him. For this song, I needed someone with not only his skill, but his personality. And I needed someone who really understands the perspective and the metaphor in the song of going numb and being numb to everything around and to say, “Fuck you.” Eminem is definitely the perfect guy for that.