London, Dec 14 : Music mogul Simon Cowell is contemplating quitting `X Factor' after the next series.
The X Factor has admitted that it was exhausting to do the show plus `American Idol' and `Britain's Got Talent'.
"It looks like I'm only going to be doing it until 2010. I've really felt it this year. When you do three shows a year it's tiring and something's got to give," News of the World quoted him, as saying.
"I'm contracted to do one more series and then I'll make a decision. I'll see how I feel in the New Year," he added.
He also hinted fellow judge Dannii Minogue may choose to walk after this series-and hailed Cheryl as "this year's real winner".