03/18/2010 05:12 am ET Updated May 25, 2011

'American Idol' Interview: Ellen Prepared To Call Simon Rude

Simon really is, in my opinion, mean to people sometimes," says DeGeneres, who makes her first appearance on Idol when Hollywood Week kicks off on Feb. 9. "So I think I'll be hard [as a judge], but if he's rude, I'm going to let him know he's rude."

"And I may disagree with you," Cowell retorts. "If everything is 'After you,' 'No, after you,' that's uncomfortable."

Read more on ew.com