Welp, at least this may pull in some ratings. Mariah Carey and Nicki Minaj aren't fans of each other and they're unable to hide it during American Idol tapings.

Nicki and Mimi taped their first Idol episode yesterday in New York and when Nicki would critque contestants, Mariah would interrupt her.

"Each time Mariah interrupted, Nicki fought back by loudly talking over Mariah.

One "A.I." spy said Mariah and Nicki tried to cover their disdain for each other but everyone saw through it, adding, "These girls just don't like each other," TMZ reports.