Ellen DeGeneres finally made her 'American Idol' debut on Tuesday night, sitting along side Simon Cowell, Randy Jackson and Kara DioGuardi at the judges' table. It was Hollywood week on 'Idol,' and DeGeneres proved from the get go that she was there to work and not overshadow the contestants. DeGeneres seems to be fitting in nicely, and she's been getting nothing but raves from critics. See what critics (and fans) are saying after the jump. >>