Mariah Carey told Barbara Walters that because of her feud with Nicki Minaj, she hired extra security.

"I just felt it was the appropriate thing to do. ... Sitting there on the road with two babies, I'm not going to take any chances," Carey tells Walters in an ABC Nightline interview set to air tonight.

"For all the drama, I hope it helps the show. I think it's a classic, classy show, and it didn't need this,” Carey goes on to say.

It has not been an easy road for Minaj or Carey.

Back in September, the two newest “American Idol” judges argued just hours after Minaj officially joined the judges’ panel. 

Minaj started critiquing a contestant, and Carey could not stop interrupting.

The women went back and forth, trying to speak over one another, according to TMZ.

Then in October, at the "American Idol" auditions in Charlotte, N.C., Minaj had a heated altercation with her co-judge as Keith Urban sat between the superstars. 

“I told them I’m not [expletive] putting up with your [expletive] highness over here,” Minaj reportedly said during the interaction. 

Meanwhile, Carey’s responses are inaudible in a video that was released by TMZ.

Taping for the hit talent competition was halted after the shouting match.

Minaj addressed the feud in November on her E! reality show, “My Truth.” She told Mack Maine, another rapper on Lil’ Wayne’s Young Money label, "I just know that I had reached my boiling point.

"Twenty minutes before that happened, she egged me on, and I was like, ‘You know what? Let me go.’ I walked off.

"I stormed off the stage, because I didn’t want to do that. So, I left, and, when I came back, it was another jab, and I said, ‘OK, now I’m gonna [sic] show you."

She’s admitted that she did not want another female doing the show. Thinking somebody’s coming to steal her shine, nitpicking, and I don’t do well with that passive aggressive [expletive]. I stay away from mother [expletive].

I work and keep it moving. I don’t [expletive] with the people in the business, but I did the show today, and it was good. I made it clear, like, if you do that again, I’m gonna [sic] do this again. Like, I’m not gonna [sic] allow it anymore. I can’t,” Minaj said.

Though Carey and Minaj worked together on Mariah Carey's single "Up Out My Face" in August, when it was speculated that Minaj was negotiating a deal with the hit talent show, it was reported that Carey was furious, because she thought she would be the only female judge on "American Idol."

Carey allegedly was so unhappy about Minaj joining the judging panel that she hung up the phone on the producers when they told her about the newcomer.