Katy Perry asks Stella McCartney 'hard hitting questions' about Britain at Coronation Concert

‘American Idol’ Gets Royal Surprise From King Charles III & Queen Camilla As Katy Perry & Lionel Richie Check-In From The U.K.

Why Katy Perry and Lionel Richie Are Not Judging 'American Idol' Tonight

Take That, Katy Perry and more entertain 20,000 at coronation concert