Megyn Kelly was incensed that Taylor Swift endorsed Vice President Kamala Harris on Tuesday, telling the singer that she can “kiss your sales to the Republican audience goodbye.”

“Eff you, Taylor Swift,” Kelly said on her SiriusXM podcast “The Megyn Kelly Show” after Tuesday night’s debate between Harris and former President Donald Trump in Philadelphia.

Kelly reacted to Swift’s announcement on social media that she would be voting for Harris. The singer also posted a photo of her alongside her cat and signed the message “childless cat lady” — a reference to a comment made by Trump running mate Sen. JD Vance (R-Ohio) about women who vote Democratic.

She said Swift apparently was “fine” with Harris’ running mate, Minnesota Gov. Tim Walz, and his plan “to take custody of the children from parents who don’t want them to chop off their body parts” and put them in state custody “so that they can be sterilized outside the custody of their parents.”

“That’s what led Taylor Swift to endorse him,” according to Kelly, who added that she called for a boycott of the singer earlier this year when she “went to a fundraiser to raise money for … a group that was known to funnel money to Hamas.”

“This is disgusting,” Kelly said.

“If she wants to vote Harris/Walz, she can do it all she wants, but to say the reason she’s doing it is because of Tim Walz’s stance on LGBTQ … Eff you, Taylor Swift.”

Kelly then took aim at Swift and her boyfriend, Kansas City Chiefs football star Travis Kelce. She said the couple was “the epitome of elite snobs.”

Kelce, who is also a pitchman for the Pfizer vaccine aimed at treating COVID, is “totally f–king clueless” about “the myocarditis taking the lives of young men in this country who didn’t need” the booster, according to Kelly.

“Where is he going to be when these boys wind up with heart scarring that causes heart attacks and potentially death?” Kelly said, adding: “They will be sitting in their mansions in Rhode Island, California, and New York, and jetting across the world saying, ‘Let them eat cake,’ because they’ll be bathing themselves in their own sanctimony.”

She said Swift and Kelce were “too obsessed with their money and their concerts and their football games to have a thought for those they’ve hurt.”

The Post has sought comment from Swift and Kelce.