Nice And Professional: Nicki Minaj Curses Mariah Carey Out @ American Idol Auditions [Video]

Looks like American Idol executives might already be regretting pairing Nicki Minajand Mariah Carey together as judges on the show.

The two divas got into an argument over a contestant's performance and it led to Nicki cursing out Mariah.

"I told them, I'm not f*ckin' putting up with her f*ckin' highness over there," Nicki yells in the footage obtained by TMZ.

According to TMZ's report, Nicki later threatened to "knock out" Mariah.