Meghan McCain and her mother, Cindy, chat with ET's Rachel Smith at the 2023 TIME100 Gala in New York City.
Perry is just one of the performers set to take the stage at King Charles' coronation in London next month.
'American Idol' airs on Sundays and Mondays on ABC.
The singer also jokes with ET about her plans for the Met Gala.
The brothers have been estranged for years and Harry's January release of his memoir, 'Spare,' only furthered the rift.
The singer is one of several A-listers who are set to take the stage.
Tom opened up on the Apple News podcast, 'The News Agents.'
Prince Andrew's ex-wife will attend the concert on May 7, the day after the coronation.
The Duke and Duchess of Sussex appear in the official souvenir program for the coronation.
It was announced last week that Prince William and Kate Middleton's 9-year-old son would serve as a page of honor.
The iconic singer opened up to ET at the 9th Annual Breakthrough Prize Ceremony.
The palace confirmed that Prince Harry will attend his father's coronation without his wife and kids.
Charles' coronation ceremony is slated for May 6 in London.
Prince Harry will be in attendance at the Westminster Abbey ceremony next month.
