Mario’s In, Khloe’s Out At ‘The X Factor’

And then there was one.

Mario Lopez has signed on to host another season of The X Factor, but reality star Khloe Kardashian will not be back at his side.

“Khloe Kardashian will not be returning to co-host The X Factor,” producers of the hit Fox talent competition said in a statement Monday. “We really enjoyed working with her and wish her all the best in her future endeavors.”

A rep for Kardashian had no comment.

Lopez joins X Factor creator Simon Cowell and his fellow judge, Demi Lovato, as the only three show regulars confirmed to stay on board for the third season.

“I’m thrilled Mario is back,” Cowell said on Monday. “Hosting a live show and keeping the judges — especially Demi — in line, is not an easy job, but Mario is a pro and we are glad he’s coming back.”

Back in January, Britney Spears announced she would be stepping away from her seat at the judge’s table after just one season, a move made to free up her schedule for music-making.

“I’ve made the very difficult decision not to return for another season,” said Spears, who is working on her upcoming eighth studio album. “I had an incredible time doing the show and I love the other judges and I am so proud of my teens, but it’s time for me to get back in the studio.”

Only a month prior, X Factor veteran L.A. Reid — who sat on the original judging panel alongside Cowell, Cheryl Cole and Paula Abdul — had resigned after two seasons, recommitting his career to his company, Epic Records.

“I have decided that I will not return to The X Factor next year,” Reid told Access Hollywood at the time. “I have to go back and I have a company to run that I’ve kind of neglected and it saddens me a little bit, but only a little bit.”

While it’s unclear if X Factor will hire a partner in crime for Lopez, there are two judges’ seats to be filled before the show returns for season three.

Could Lovato wish for Lady Gaga to join as a judge come true? Who do you think could boost the panel? Weigh in below.