The pair join a long list of esteemed names who have sat behind that famous desk on the ITV talent show.
Did you know, since the show began way back in 2004, there have been 13 different faces sat on the panel in nine different line ups, not to mention the 12 guest judges who have filled in here and there?
But how many of them can you remember? Test your ‘X Factor’ knowledge by scrolling through the gallery below…
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