Nicki Minaj & Mariah Carey At War On American Idol Set?

"American Idol" judges Mariah Carey and Nicki Minaj are at war.

According to Life & Style there was "an uneasy feeling in the air" when the judging panel assembled earlier this month for auditions in New York.

Carey is "no doubt prepared to butt heads with the rising star," writes Life & Style

"I've known Nicki for a while, and I can tell you 100 percent that she's a diva," explains an "insider" for the tabloid. "I don't know how she's going to get along with Mariah on Idol. I'm guessing she won't."

Ryan Seacrest recently pointed out, there are not many "dull moments" between Carey and Minaj.