Carrie and Ryan Seacrest go way back.
(Undated) -- Carrie Underwood is signing on as co-host of 'Live With Kelly & Ryan.'
She'll join the duo on November 8th. Carrie and Ryan Seacrest go way back to Season 4 of "American Idol."
Ryan hosted the show, and Carrie took home the title. 'Live With Kelly & Ryan' airs weekday mornings on NBC.