Mariah Carey And Nicki Minaj Bicker On Idol

American Idol judges Nicki Minaj and Mariah Careylast night.

The pair bickered over one of Kree Harrison's performances - in the fittingly titled "diva week".

Arguing about the merits of Harrison's performance of She Talks To Angels, Carey rebuffed Minaj's interruptions by telling her: "I disagree with your disagreement."

Which prompted the rapper to respond: "Simmer down, sir."

And Mariah didn't know what to say to that.

This week saw each of the five remaining contestants - all women - perform a song from the year they were born, followed by another from a strong female performer.

And later in the show Minaj appeared to be making nice with Mariah, praising the original version of a song performed by Candice Glover - which just happened to be Mimi's duet with Whitney Houston, When You Believe.

Another of the contestants will go home tonight in the US.

We told you earlier today how Nicki is reported to be making her film debut soon.

SEE 101 OF NICKI MINAJ’S MOST FAMOUS LOOKS HERE!