American Idol Mariah Carey and Nicki Minaj reportedly going at it already on 'American Idol' 09/17/2012 Mariah Carey and Nicki Minaj are reportedly already causing tension on the American Idol set. Read More RELATED NEWS Mariah Carey to reportedly star in her own docu-reality series Former 'American Idol' in-house mentor Jimmy Iovine marries Liberty Ross Mariah Carey engaged to billionaire businessman James Packer after whirlwind romance TAGS: American Idol Mariah Carey Simon Cowell Ellen DeGeneres Kara DioGuardi Randy Jackson Jennifer Lopez Nicki Minaj Steven Tyler Keith Urban
