You may recall that when it was rumored Nicki Minaj might join the cast of American Idol, Mariah Carey wasn't pleased. Not surprisingly, the two are already at each other's necks.

According to reports, Carey and Minaj clashed during their first taping yesterday (Sept. 16) in New York, with the former interrupting the latter every time she went to speak. That caused Nicki to try to talk over Mariah and, well, it was just super awkward.

"These girls just don't like each other," said a source. 

All things considered, that should make for some interesting television.

[via TMZ]