Speaking to Ellen DeGeneres in advance of the new series of the hit reality TV show starting this week, the rapper lifted the lid a little more on what caused the pair's infamous on-set bust-up last year.
She said: "I don't know. It was just two big old divas, I guess.
"I was just like sitting there, and I guess before I went in there I heard all the stuff that was being said, but I didn't believe it. I heard them saying 'Mariah doesn't want you on the panel' but I was like, 'No. I am friends with Mariah'."
But Minaj appeared to take some of the blame for her shouting match with Mariah - suggesting that she was trying to compete.
"I was like arguing people down. Like, 'Don't believe everything you read, you're crazy'. And so I went there and I started to feel a bit of the shade. And I just kind of overcompensated by being crazier."
The new series of American Idol starts on 5* at 8pm tomorrow in the UK.