It was that revelation that inspired Perry to write "By the Grace of God," in which she sings about "lying on the bathroom floor" and wanting to give up on life. "The song is very autobiographical," she notes. "I was down and out, I'd lost hope, all of my confidence had been shattered."
"Unfortunately, although I had a lot of outward self-identity, I didn't have the inner kind. I hadn't built that up," she explains. "My self-worth was in someone else's hands, which is never a good idea, because it can be taken from you at any time. And it was, and it was shattered."
These days, Perry is feeling stronger and more confident -- hence the hit song "Roar." Though she admits she writes "very vulnerably," she's not worried about people "trying to find [the] little cracks" in her armor. "I have them, and I'm not afraid of them," she tells the Sunday Times.