Nicki Minaj, Mariah Carey Feud: Rapper Cusses Singer Out (CAUGHT ON VIDEO)

Didn't "American Idol" judges Nicki Minaj and Mariah Carey recently say there was no feud between them and that they were getting along splendidly?

Turns out these two dueling singers have a serious beef. The two had an argument over a contestant's performance and it was all caught on tape.

Before the feud was captured on film, Minaj told Carey, "I'm gonna knock you out," according to TMZ. Then, according to MouthToEars.com, Carey made jabs at Minaj and called her a b**ch. At one point, Minaj walked off set and production of "American Idol" was halted for the day so the two judges could cool off.

Click here to watch a video of Minaj cussing out the pop singer. 

In the video Minaj says, "So every time you patronize me, I'm-ma take it back, and if you've got a f**king problem, handle it. I told them I'm not f**kin' putting up with her f**king highness over there. Figure it the f**k out. Figure it out. I'm not gonna sit here every f**king minute to have you come down and harass me every minute everyday."

Carey is talking back at Minaj in the video but it's difficult to understand what she's saying.

On Sept. 17, Carey dismissed rumors by telling MTV, "How are we gonna feud in two days? A feud takes a little longer to spread out [than that]."

Minaj recently told The Associated Press, "[We're] getting along wonderfully, darling." However, TMZ  previously reported that Carey and Minaj had enough of each other from the first day of taping. Every time Minaj began critiquing a contestant, Carey would interrupt her, so Minaj grew louder and louder.

One of the site's sources claimed, "These girls just don't like each other."

It was also rumored that when producers called Carey to let her know Minaj was one of the judges, she allegedly hung up the phone.