Back in 2012 Mariah Carey and Nicki Minaj famously clashed while judging American Idol [click here if you missed that].
Turns out Mariah was the one starting trouble...
Fox's president of alternative programming at the time, Mike Darnell, spilled the beans in a recent interview with Andy Cohen.
From E! News
Mariah Carey Instigated the Nicki Minaj Feud
Season 12 was the first and last for both Carey and Minaj, whose leaked on-set argument was "raw and real," Darnell said. "The one you think was the problem—she wasn't the problem."
Lythgoe piped in, saying, "Nicki was not the problem...There are tapes buried in chainsaw." As for how one of the tapes leaked, Darnell said, "Honestly, the answer is we don't know."
Even so, he called it a "nightmare experience."