If American Idol needed some publicity, judges Nicki Minaj and Mariah Carey are sure earning their keep. Earlier this week, a video of the divas butting heads went viral, and naturally Barbara Walters is already getting to the bottom of it. On The View Thursday, Walters said Mariah Carey told her she had hired extra security after people heard Minaj threaten to shoot her. “Nicki walked off the set and multiple people heard Nicki say, ‘If I had a gun I would shoot the bitch,’” Walters said. The fiery rapper quickly took to Twitter to respond. “Hey yAll. Lets just say nicki said smthn about a gun. ppl will believe it cuz she’s a black rapper. Lmao. I’ll then hit up Barbara n milk it.” Viva la diva.