Ryan Seacrest chats with ET’s Cassie DiLaura at the 2024 iHeartRadio Music Festival, which streamed on Hulu. The ‘American Idol’ host talks about Carrie Underwood joining the upcoming season 23 judging panel. Ryan, who hosted the 2-day music festival, reveals her official start date and his plans to separate the ‘Idol’ group chat he has with Luke Bryan, Lionel Richie and former judge, Katy Perry.