Katy Perry Just Watched The Guy She Says Will Win 'American Idol'

Lionel Richie called Alejandro Aranda's audition "the greatest" and Luke Bryan said, "I don't even want to see anybody else."

Alejandro Aranda might want to prepare to leave his dishwashing job.

The self-taught California musician, 24, performed a tour de force audition on “American Idol” Wednesday that rocked the judges’ world.

Lionel Richie said it was “the greatest.” Luke Bryan said, “I don’t even want to see anybody else.” In perhaps the best praise of all, Katy Perry declared: “I think you’re the winner.”

Watch above as Aranda’s unique, understated voice and impressive guitar skills go to work in one of the most lauded “Idol” performances ever.