The Carrie Underwood-Jessica Simpson Feud was hot on the gossipwire on Thursday. Jessica made waves this week after she accused Underwood of lying when she said that ex-boyfriend Tony Romo (who is presently serving as arm candy for Jessica’s eyes only) had been secretly calling her in the September issue of Allure.

While Jessica may think of Carrie as a meat-hating hussy determined to bad-mouth her Tony, friends of the former American Idol say the feelings of disgust are mutual. Guess what, Jessica? Carrie doesn’t like you, either!

“Carrie can’t stand Jessica,” a spywitness whispers. “She’s always thought of her as a no-talent pop-tart who ran off with Tony.”

Despite her contempt for J.S, Carrie managed to hold her tongue, that is until Jessica was snapped walking around Encino with “Real Girls Eat Meat” plastered across her ample bosom. The controversial choice of wardrobe, a decision that earned Jessica stinging tongue-lashings from PETA and Pamela Anderson, was perceived as a direct dig at Carrie, who is a vegetarian.

“Carrie’s comment to the magazine was a way of getting back at Jessica for that T-shirt,” says a National Enquirer insider close to soft-spoken Underwood. “Carrie thinks of Jessica as her nemesis and takes a swipe at her whenever she can.”

“She figured that her comment about Tony calling her would get under Jessica’s skin.”

“Carrie and Jessica will always hate each other.”