Fox News host Megyn Kelly in a new interview passes on an opportunity to critique presumptive Republican presidential nominee Donald Trump Donald John TrumpUS reimposes UN sanctions on Iran amid increasing tensions Jeff Flake: Republicans 'should hold the same position' on SCOTUS vacancy as 2016 Trump supporters chant 'Fill that seat' at North Carolina rally MORE's appearance, though she defends his famous hairdo as authentic.

"I would say the hair is real. I have laid hands on it personally. That is not a wig, and it's not a combover, either," Kelly said Monday night during an appearance on Bravo TV's "Watch What Happens Live"

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"I have run my fingers through it. We used to get along!" Kelly said. "I stuck my hands under there, I shoved my hands up in that hair, and that's real."

Kelly handled Trump's hair during an interview in late 2011, several years before the businessman and reality TV star launched his White House campaign. He still regularly makes reference to his hair.

Kelly also weighed in on her Fox colleagues during the appearance, one night before her high-profile interview with Trump, which is slated to air Tuesday evening on the Fox broadcast network. The businessman feuded with Kelly for months after their run-in last August at the first GOP debate, which Kelly co-moderated.

Asked which Fox colleagues could be more "fair and balanced," referencing the network's slogan, Kelly said, "I wouldn't say Hannity is the most fair and balanced guy. He's a conservative commentator."

"But he doesn't purport to be, so it's OK," she said, adding that Fox has personnel dedicated to news, such as herself, Bret Baier and Chris Wallace, while others offer opinion, such as Hannity, Bill O'Reilly and Greta Van Susteren.