Stern has now used his radio show to reveal that NBC bosses reprimanded him for the comments, The Hollywood Reporter says. 

"I got a threatening kind of comment from one of the executives," he said. " I was laughing my ass off. 

"I said, 'Do not tell me to not talk about Jay Leno.  I will f**king talk about Jay Leno for four hours if you tell me not to'.  I was done with Jay, now I'm all fired up again.  F**k Jay!" 

However, Stern, who referred to Leno's pay cut by saying: "Just keep it to your f**king self," also admitted that he loves appearing on America's Got Talent. 

"I love working for the people at NBC, they've been nothing but wonderful," he said. " I don't answer to anybody.  Everybody knows that.  That's part of the game.  And that's why I'm a great f**king judge.  I will tell people if they suck."