King Charles and Queen Camilla Make Surprise Appearance on 'American Idol'

Ed Sheeran and Alanis Morissette Bring British and Canadian Edge to ‘American Idol’

Royal fans hit back at King Charles and Queen Camilla haters: ‘Love always wins’

Watch Katy Perry, Lionel Richie Perform at Coronation Concert, King Charles & Queen Camilla Pop In on ‘American Idol’