Neil Patrick Harris visits Ellen, defends Simon Cowell...

Neil Patrick Harris is hitting the talk show circuit hard promoting "Harold and Kumar Escape from Guantamino Bay" which opens Friday. But he spent more time talking about "American Idol" on yesterday's Ellen DeGeneres show saying that he is most impressed with David Archulleta who "I think will sell a trillion albums." He also defended arrogant judge Simon Cowell saying: "I think he's the coolest judge ever...Paula (Abdul) talks and talks and talks and talks."

But Ellen took issue with some of Simon's rudeness such as when he told Carly Smithson that she was dressed horribly: "He doesn't have to be personal and he doesn't have to attack and say, 'You're forgettable.'"

Well said Ellen!