Rumors that Nicki Minaj and Mariah Carey were beefing on the set of American Idol have finally been confirmed. TMZ.com obtained a video that shows Nicki going off on Mariah during audition rounds in Charlotte, North Carolina yesterday.

The whole thing exploded over a disagreement over a contestant’s performance.  The two judges were sitting at the judge’s table with Keith Urban sitting in between them and Randy Jackson sitting on the far end, next to Mariah.

On the tape, Nicki said, “I’m not going to take it back, and if you’ve got a f—ing problem, handle it. I told them, I’m not f—ing putting up with her f—ing highness over there. Figure it out!”

Mariah then responds to Nicki, “Ohhhhh, why, why, why?”

Nicki also told Mariah that she was “boring as f*ck” and allegedly threatened to knock Mariah out — but that part wasn’t shown on the tape.

Listen closely as you play the video and you’ll  hear the following:

Nicki  Get this s**t in self control.   Get in control.  Get in control.
Randy   Settle down, settle down
Nicki  Don’t lose your  head.  Don’t lose your head (inaudible).  Don’t tell me I’m a  gangster.
Nicki (inaudible) every 5 minutes.  So  every time you patronize me, I’m-ma take it back, and if you’ve got a f**king  problem, handle it.
Nicki 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.
Nicki I’m not gonna sit here  every f**king minute to have you come down and harass me every minute  everyday.

Mariah is talking back at Nicki but it’s hard to hear what  she’s saying.

According to Mouth to Ears, the drama escalated to the point that producers had to shut down production so that Nicki and Mariah could cool. off.