Ellen Degeneres debuts on American Idol on next Tuesday. When Ellen Degeneres first agreed to sign with American Idol as a judge Degeneres considered Simon Cowell to be mean sometimes. But after working with Simon Cowell more regularly, Degeneres realizes that Simon Cowell is meaner then she thought. Ellen Degeneres said that when Simon Cowell is cruel to the contestants, Degeneres can't help herself to want to say "You poor thing!" Ellen Degeneres is a long standing comedian and Ellen Degeneres is the judge to replace the controversial departure of Paula Abdul.