Now that Simon Cowell has admitted being "appalled" by the way he has talked to some talent show contestants, we take a look at some of the TV star's most memorable lines.
The X Factor judge said on Piers Morgan's Life Stories, to be broadcast this Saturday on ITV1: "There's many, many times where I've watched the show back and I'm absolutely appalled (â€¦).You become part of a mob and when you watch the show back you realise that you've gone too far."
So, is Simon really harsh or just funny? Here are a few of Mr. Cowell's famous put-downs to help you make your mind upâ€¦
"Thereâ€™s as much chance of you being a pop star or a rock star as me flying to the moon tomorrow for breakfast."
"You have the personality of a handle."
"You sounded like you were being strangled."
"You came in, you called yourself champagne and you sounded like house wine."
"You doing that ballad is rather like casting Ricky Gervais as Rambo."
"You have just invented a new form of torture."
"Let me throw a mathematical dilemma at you â€“ there's 500 left, well how come the odds of you winning are a million to one?"
"Shave off your beard and wear a dress. I think youâ€™d be a great female impersonator."
"What was that song? Darling, it's not just that you have a bad voice... you were singing notes that have never been invented."
"Your mouth is far too big when you sing. It's like looking in to a cave...
I've never seen anything so huge in my life. Absolutely terrible." (That's what she said!!!!)
"If you sung like this 2,000 years ago, people would've stoned you."
"I could sell you as a sleeping aid. I've never heard anything more boring in my life."
Do you think Simon goes too far? What are your personal favourite quotes?