Former American Idol contender Carrie Underwood will serve as a judge on the singing competition show in the spring of 2025. "CARRIE From Idol hopeful, to global icon...to IDOL judge! Home-grown superstar @carrieunderwood will join @AmericanIdol for Season 8! #CUonIdo," the Grammy winner's X feed said Thursday. Underwood will replace outgoing judge Katy Perry and join Luke Bryan and Lionel Richie on the panel for Season 8 on ABC and ...