By Alexis Tereszcuk - Radar Entertainment Editor
The two will be co-hosts of the hit show once the live competitions start in November, a source told Us Weekly.
"We have screen tested a load of people. . .It could be a Kardashian," Cowell said. "I think that would work. I'm quite a fan of not putting experienced hosts on this show. Because I think it's going to give it a different dynamic. So we have to find people who have a great chemistry, but Khloe is definitely up there in running."
Khloe can definitely get some advice from Mario, who still will be hosting Extra.
Will you watch Khloe and Mario on The X Factor? Tell us in comments!
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