“rude” — coaching methods during the show’s 21st season.In the video, which was posted to the official “Idol” Instagram, Perry, 38, Luke Bryan, 46, and Lionel Richie, 73, are sitting at the judge’s table when the “All Night Long” singer remarked on his co-judges outfit by saying “we have cat woman with us.”Richie’s joke elicited laughter from Bryan who called his co-judge “Katy Purry.” Taking both comments in stride, the “Peacock” singer hopped up on her chair and extended her left leg before returning to a crouching position and holding her hands up like paws.“I’m ready to prowl for talent,” purred the singer. Perry then began to paw at Bryan’s shoulder while the country singer seemingly ignored the “I Kissed a Girl” singer’s antics.