The "Habits" star recounts recovering from career-threatening vocal-cord surgery.
I've always had a husky voice, and that was fine -- until my schedule went from this to this. I did Jimmy Kimmel Live! and I knew something was wrong. I could barely sing one song. I was on tour in Australia with Katy Perry. The doctors told me it was a cyst and that I needed surgery. I panicked. They said I could do the two last shows; my family came all the way from Sweden to be there. I played my last show in New Zealand -- I was crying my eyes out.