Jennifer Lopez is definitely out. Steven Tyler is definitely out.
And Mariah Carey is...so in!
Fox President Kevin Reilly just announced to reporters at the TV Critics Association press tour that Mariah closed a deal ("only hours ago") to become a judge on the next season of American Idol.
Mariah herself spoke to reporters via speakerphone, saying: "I am so excited to be joining Idol. I wish I could have been there myself to tell you. It all kind of just happened real quickly. I can't wait to get started in a couple months...I will s...