THE GREATEST MOMENTS HOSTED BY RYAN SEACREST ─ The greatest moments of the   iHeartRadio Music Festival events come together in this one hour special.  Hosted by Ryan Seacrest (“On Air with Ryan Seacrest”), the special will feature some of the festival’s most memorable performances including Prince and Mary J. Blige, Miley Cyrus and Billy Idol, Taylor Swift, Pink, Britney Spears, Shawn Mendes, Queen and Fun, and many more. Original airdate 9/29/2019