American Idol feud rage continues As Mariah Carey calls in extra security after Nicki Minaj 'gun threat'

Mariah Carey hired extra security after Nicki Minaj allegedly threatened to shoot her.
The new American Idol judges had an explosive argument on the set of the talent show on Tuesday and the Hero diva is worried about the 'unpredictable' rapper's next move.
Mariah, 42, contacted chat show host Barbara Walters, who read out a statement on The View which revealed several staff members had heard Nicki quip: 'If I had a gun I would shoot the b***h.'