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

Watch King Charles III, Queen Camilla Make a Surprise Appearance on Tonight’s ‘American Idol’

King Charles III & Queen Camilla Make Surprise Appearance On ‘American Idol’ After The Coronation