The 59th annual edition of the awards show will now be executive produced by Ken Ehrlich, the awards show veteran who has produced 27 Grammy telecasts and three Emmy shows, among others.
In a joint statement, Lythgoe and Warwick explained their decision to step down.
"After we wrapped the enormous effort of 'Idol Gives Back, ' we looked at our upcoming slate of projects, including the 'American Idol' finale and the additional shows we will be involved in this summer, and realized that we could not devote the creative energy and time necessary to make the Emmys outstanding for the academy and Fox," they said.
Fox and the Academy of Television Arts & Sciences announced in February that Lythgoe and Warwick would be running the show (HR 2/22). There were high hopes that the duo would jazz up the telecast, with Warwick promising to produce "the best Emmys to date."
ATAS chairman and CEO Dick Askin, who made the announcement Friday with Fox Broadcasting Co.