'X Factor': Mario Lopez Asks Co-Host Khloe Kardashian to Ditch the Heels

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A Kardashian in flats? Say it isn't so!

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X Factor viewers may be seeing host Khloe Kardashian in a whole new light come November: sans her signature sky-high heels. If co-host Mario Lopez gets his way, that is.

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Calling in to LA radio's 104.3 MYfm Valentine in the Morning show Wednesday, Lopez revealed that while Kardashian expects him to "quarterback" the show, he's made a simple request of his own.

"My only request to her was, 'Can we not wear anything bigger than 3-inch heels?'" he said. "'Cause she's already tall and I don't want to be coming in looking like a runt. She's already 5'10, so if she's coming in at 6'3… It's gonna be rough."

With Internet speculation measuring Lopez between 5'10 and 5'11, the hosting duo would be around the same height if Kardashian opts for flats.

Kidding aside, Lopez confessed that he would be meeting up with boss Simon Cowell later in the day to discuss the logistics of their two-host system.

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"I don't know how the format's gonna be, how they're thinking about it," he said. "I don't know if it's going to be like Dancing With the Stars where Tom Bergeron's in the front and maybe she's in the back -- I don't know what they have planned."

But no matter what Cowell throws at them, Lopez insists that he and Kardashian are a match made in hosting heaven.

"I've happened to know her for a long time and she's a sweetheart and we get along great," Lopez said. "I know her and her family, so we're all good on that end, but I don't know how they're gonna play out on the show."

After baseball rain delays and technical difficulties last week, it was revealed on Tuesday which finalists would move past the judges' homes round and on to the live shows beginning Nov. 1. For a recap of the Tuesday episode, click here.

Email: Sophie.Schillaci@thr.com; Twitter: @SophieSchillaci