I’ve become a bit of a fickle fan when it comes to American Idol. I usually watch the first few episodes so angelic voices can tug at my heartstrings while overconfident screechers can make me feel better about my karaoke rendition of “Firework.” Then I drop off while they weed out the mediocre people, returning just to get a feel for the final two, form an opinion, and express it via Twitter. But thanks to the new additions to the judging panel, my viewing habits are about to change. Like when Britney Spears joined the X Factor. Hopes of a catfight between Nicki Minaj and Mariah Carey (more of a cougarfight in her case) are worth watching for.