Nicki Minaj foul mouth rant at Mariah Carey during American Idol audition

Nicki Minaj is said to have threatened Mariah Carey after her American Idol co-star called her a “b****” – it is now being claimed.

Show bosses cancelled filming in Charlotte, North Carolina for the day on Tuesday after a huge blow up between the pair where Nicki Minaj allegedly threatened and swore at Mariah Carey.

But witnesses insist Mariah Carey started it, according to reports.

A source told Mouthtoears.com: “Nicki Minaj walked off of set because Mariah Carey kept making jabs at her.

“Nicki’s manager and team convinced her to come back to the show. Mariah kept at it and called Nicki <<a b****>> and then proceeded to cuss her out. Producers had to stop filming and call it a night.”

It was previously reported how Nicki Minaj fumed she was sick of her co-judge, labelling Mariah Carey her “f*****g highness”.

Their fellow panelists Keith Urban and Randy Jackson were caught in the middle of the row, according to TMZ, which is running a video of the row, where Nicki Minaj can be heard ranting at Mariah Carey.

A source told the website: “[Nicki said to Mariah] <<I’m gonna knock you out>> – although this was not caught on tape.”

In the video being run by TMZ, Nicki Minaj can be heard saying: “I told them I’m not f*****g putting up with her f*****g highness over there [Referring to Mariah]. Figure it the f*** out. Figure it out.”

Mariah Carey can also be heard answering back in the video – but it is difficult to make out exactly what she is saying.

The row is said to have started due to a disagreement over a contestant’s performance.

As he headed to bed on Tuesday night, host Ryan Seacrest wrote on Twitter: “Going to bed in Charlotte after an anything but dull day at #idol auditions. Hit u in morn.”

Producers are now said to be concerned about how the pair will manage to work together for the rest of the season, TMZ reports.

Mariah Carey was said to be unhappy with Nicki Minaj joining American Idol because she was worried it would turn the reality TV programme into a “freak show”.

A source previously told Hollywoodlife: “Nicki isn’t established enough to qualify as a judge.

“Mariah wants a panel of bright, inspirational and constructive judges. Not some freak show!

“Mariah thinks Nicki will just be a distraction and it will all be about her and her outrageous behavior. Mariah will not be happy if Nicki joins the panel and she has let the producers know just how she feels!”

While Mariah Carey has 22 years experience in the industry, relative newcomer Nicki Minaj only leaped to fame two years ago.

Mariah Carey and Nicki Minaj have apparently not been getting along since auditions first started in New York last month.

During their first taping of the talent reality show the pair were said to have talked over one other in a bid to be the most vocal judge.

The drama began when 29-year-old Super Bass singer Nicki Minaj starting critiquing a contestant, but despite it being her moment to reign, Mariah Carey, 42, couldn’t resist butting in on several occasions.

But according to TMZ, each time the Dreamlover star intervened, feisty Nicki Minaj just spoke louder.

A source said at the time: “These girls just don’t like each other.”

Following the first day of shenanigans in New York, a fan tweeted Nicki Minaj to ask how the judging had gone, to which she cryptically responded: “It was… interesting… “