Howard Stern says he received a call from an NBC executive who made a "threatening kind of comment" after Stern called NBC late-night host Jay Leno a "spineless maggot," reports TheWrap.com.

Stern, who is a judge on NBC’s "America’s Got Talent," did not name the executive. Stern attacked Leno last week on his radio show, after reports that the late-night host had taken a pay cut to save jobs on his program.

Recalling the phone call from the NBC executive, Stern said on his radio show, "I was laughing my ass off. I said, ‘Do not tell me to not talk about Jay Leno. I will fucking talk about Jay Leno for four hours if you tell me not to. I was done with Jay Leno, now I’m all fired up again. Fuck Jay!"

Stern added that he loves his job on "America’s Got Talent," according to the story. "I love working for the people at NBC — they’ve been nothing but wonderful," he said. "But please don’t tell me what to say. I’d rather leave than not talk about Jay Leno."

On his radio show last week, Stern took exception to reports that Leno had taken a pay cut in an effort to save the jobs of “Tonight Show” staffers. According to Stern, it was Leno who wanted the cuts, and the late-night fixture was hiding behind NBC.

Said Stern: “It’s all horseshit. It’s bullshit. It’s a smokescreen. … Here’s what it really means, and you can take this to the bank: Jay Leno is a scumbag. That’s what that means. He’s a spineless maggot. Jay wanted to cut staff. He’s embarrassed to do it. He didn’t want to come off as a bad guy. NBC took the hit for him, because they’re a corporation. … My bullshit meter is going off all over the place."