‘American Idol‘ sure is looking to fill the heels, er, judging spot, vacated by Jennifer Lopez, with someone bigger and better! The show is reportedly thisclose to replacing one diva with another in the form of Mariah Carey. O to the M to the F to the G. The five octave Carey as an ‘Idol’ judge? So much for those rumors that ‘Idol’ was planning to downsize for Season 12. Producers are shooting for the stratosphere if they close this deal.