The Khloe and Lamar star and Mario Lopez were named as co-hosts for the X Factor USA live shows last week, replacing Steve Jones.
Kardashian recently admitted that she is nervous about the new job in an interview with On Air with Ryan Seacrest.
"What if I get kicked off the show because I say something so bad? That is what I'm nervous about," she told Ryan Seacrest. "Listen, I can't be anybody else but myself. I just have to control the language a little bit."
Kardashian also revealed that she no longer worries about feeling at ease around X Factor judges Britney Spears, LA Reid, Demi Lovato and Simon Cowell.
"The good thing is I'm friends with Demi, like I'm comfortable around these people," she said, adding: "I mean, Simon, I've never met, so as long as I sit on his lap and talk to him, it'll be fine."
Khloe was congratulated for landing the X Factor job by sister Kim Kardashian, who tweeted that her sibling will make an "amazing host".
Lopez and Khloe will make their debut when the X Factor USA live shows begin on November 1.