Katy Perry (played by Katy Perry) on American Idol on ABC was spotted wearing this yellow one-shoulder mini dress on American Idol on Mar 23 2020's episode. Katy's Dress is the Spring 2019 Collection by Dice Kayek . Katy's Earrings is the Drop Black Earrings by Saskia Diez . Katy's Headband is the Thada Headband by Jennifer Behr. For shoppable links visit wornontv.net/179984