Mariah Carey has been telling ITV's 'This Morning' about the strange places she finds inspiration. She said: “Sometimes I wake up in the middle of the night and have an idea and have to get up and record it straight away before I forget it. Or with 'Hero', I was in the studio and someone was telling me about this film 'Hero' with Dustin Hoffman in it. I took a walk to the loo and when I came back I had this idea for a song, and that was what then became 'Hero'”.