Duchess Sophie impresses with dance moves as royals groove to Lionel Richie

King Charles & Queen Camilla Make Surprise Appearance on 'American Idol' After Coronation with Katy Perry & Lionel Richie

King Charles III and Queen Camilla appear on American Idol with judges Katy Perry and Lionel Richie

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