Simon Cowell shaded his former “American Idol” co-star Ryan Seacrest by admitting he doesn’t follow the latter’s career.

On Saturday’s episode of the New York Times podcast, “The Interview,” the TV personality was asked why he thought Seacrest was “so popular.”

“I don’t know, actually,” he said. “He was very, very ambitious. And look, I don’t follow his career if I’m being honest with you.”

Simon Cowell flicking Ryan Seacrest's ear.
Simon Cowell shaded Ryan Seacrest during an appearance on “The Interview” podcast last week.FOX BROADCASTING

Ryan Seacrest with his arm wrapped around Simon Cowell's neck and shoulder.
When the TV personality was asked why he thought his “American Idol” co-star was “popular,” he didn’t have a response.Getty Images
“So I don’t know what he’s done or doing,” Cowell, 66, continued. “We rarely talk now.

“I always knew with Ryan, he was very steely about his career, wanting to be famous. I mean this massive, massive desire about being very famous.”

The former “X Factor” judge, however, acknowledged that Seacrest, 50, “does work hard.”

Despite Cowell’s remarks, his rep told Page Six there has never been a feud between him and Seacrest.

Reps for Seacrest weren’t immediately available to Page Six for comment.

Former American Idol judge Paula Abdul, judge Simon Cowell and host Ryan Seacrest onstage.
“I don’t know, actually,” he said.REUTERS

Ryan Seacrest attends the UTA and British Vogue party.
“He was very, very ambitious. And look, I don’t follow his career if I’m being honest with you,” Cowell continued.Dave Benett/Getty Images for United Talent Agency and British Vogue
The duo worked alongside each other on “American Idol” from Season 1 in 2002 to when Cowell departed the show after Season 9 in 2010.

Seacrest was the show’s host while Cowell was a judge alongside Paula Abdul and Randy Jackson.

The co-stars notably clashed on camera, including in 2007 when Cowell commented on Seacrest’s sexuality.

At the time, Seacrest asked Cowell if he had any advice for performer Melinda Doolittle wearing four-inch high heels, per TMZ.

Simon Cowell arriving at the Britain's Got Talent auditions.
The former “X-Factor” judge also stated that he rarely talks to Seacrest.FARRELL / BACKGRID

Simon Cowell attending Liam Payne's funeral.
“I always knew with Ryan, he was very steely about his career, wanting to be famous. I mean this massive, massive desire about being very famous,” he continued.Justin Goff Photos/Getty Images

“You should know, Ryan,” he responded, as Seacrest clapped back, “Stay out of my closet.”

“Come out!” Cowell then said.

However, the controversial remarks, along with several others, were reportedly scripted, per Today.

“Simon and Ryan are real good friends off-camera,” a source told the outlet. “When the show is on the road for auditions, the two go for drinks and dinner … There’s no real drama. It’s all for the cameras!”

That same year, Seacrest called out Cowell for calling him a “sweetheart” on air, telling the record executive, “Don’t call me sweetheart. … We don’t have that kind of relationship. I don’t want that kind of relationship.”

Then, in 2010, Seacrest told Entertainment Weekly that Cowell was “so jealous” of him, saying, “From Day One, he was envious of my career at such a young age.”

Randy Jackson, Paula Abdul, Simon Cowell, and Ryan Seacrest on stage at the American Idol Grand Finale.
Cowell and Seacrest worked on “American Idol” from 2002 to 2010.REUTERS

Randy Jackson, Kara DioGuardi, Ryan Seacrest, Ellen DeGeneres, and Simon Cowell standing in front of the American Idol logo.
The duo often bickered on the show.

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Seacrest, however, shared that he and Cowell don’t hold grudges during a 2010 interview on “The Ellen DeGeneres Show.”

“We’re actually friendly,” he said. “We don’t hold a grudge. We have a very competitive spirit and attitude on the show, but we’re friends.”

The radio show host appeared on DeGeneres’ show again in 2017 and referred to Cowell as “always entertaining,” per “Entertainment Tonight.”