Robbie Williams has already emerged as favourite to replace Louis Walsh when he quits X Factor after the next series. The singer currently leads the betting at Ladbrokes with odds of 6/1.
Former guest judges Rita Ora and Mel B have been given odds of 7/1, or it's an 8/1 shot that Simon Cowell or Cheryl Cole will rejoin the panel.
Keep up to date with the latest X Factor news ahead of the news series on the X Factor website.
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