Khloe Kardashian Leaving The X Factor USA
But co-host Mario Lopez will be returning for another season on reality show...
The reality TV show star had been rumoured to be departing the show - and had been criticised for her performance in some quarters.
But her co-host Mario Lopez WILL be returning, show boss Simon Cowell has confirmed in a statement.
He said: "Hosting a live show and keeping the judges - especially Demi [Lovato] - in line, is not an easy job, but Mario is a pro and we are glad he's coming back."
And a show executive said of Khloe: "Khloe Kardashian will not be returning to co-host The X Factor. We really enjoyed working with her and wish her all the best in her future endeavours."
It is not known whether a new co-host will be recruited, or whether Mario will be flying solo this year.
Lopez tweeted: "I'm excited to officially announce I'm returning to the @TheXFactorUSA team! We're coming back stronger & better than ever... Can't wait."
There are currently two empty seats on the judging panel, following the departures of LA Reid and Britney Spears.
Kim Kardashian this week warned Khloe that pregnancy is 'painful'.