Luke Bryan is singing Katy Perry's praises. The "American Idol" judge told Access Hollywood that his co-star is a "wonderful mother." "Every break she's FaceTiming Orlando (Bloom) and Daisy," he said. Luke also revealed that he and his wife spent Mother's Day welcoming a new addition to their family! The "Country Girl" singer's niece, Jordan, gave birth over the holiday weekend. "American Idol" airs on ABC on Sundays at 8/7c.