He came from a rock band and even though he was not a lead singer, I knew he was musical just from that. I also knew that he was intelligent enough from talking to him, that he would not play this part unless he could handle it vocally. I knew he was not about to get up there and have to have his voice dubbed or come off croaking. So Johnny Depp casted Johnny Depp. I trusted him entirely. I knew that he was no fool and he would only do it if he felt he could handle it. I told him to listen to the score carefully and if you can handle it, fine by me, and I was right.