British music mogul Simon Cowell often feels trapped by his packed schedule - because he knows where he will be every day for the next 18 months.
The American Idol judge has very little free time as he jets across the Atlantic to film the series while juggling his work on U.K. talent contests the X Factor and Britain's Got Talent.
And Cowell admits he hates having such a full diary because it makes his life so dull.
He says, "The last time I felt that way was when I looked at my diary and realised I had the next 18 months planned. I could tell you where I was going to be every day - which city, what time and almost what I was going to eat. That really depressed me. I thought, 'You can't escape from this.'
"You can't think, 'I want to take the next two months off to clear my head.'
And Cowell reveals that his dedication to his work means that he will never take a day off sick: "You have a responsibility to lots of people. That's why I have a huge fear of becoming ill. I never miss a day's work or a day's filming."