Mariah Carey must be in SHOCK since she learned about the plot to replace her with Jennifer Lopez in the middle of the American Idol season to boost sagging ratings. Mariah has a high opinion of herself and she threatened to sue the producers pants off. Although Idol reps scurried to deny the story, Mariah must be steaming. Of Course, Nicki Minaj must have found the news leak delightful but little does she know, HER days are numbered too. Viewers found the well-credentialed Mariah to be dull and not particularly engaging. While Nicki was more animated, much of the audience was turned off by her attitude. According to The Hollywood Reporter, the whole panel of judges will likely be replaced next year.