American Idol Katy Perry testifies in court for 'Dark Horse' copyright trial 07/21/2019 Katy Perry took the stand on the first day of her copyright infringement trial for her song, "Dark Horse," featuring Juicy J. Read More RELATED NEWS 'American Idol' alum Laine Hardy arrested for allegedly recording ex-girlfriendRyan Seacrest returning as 'American Idol' host for Season 17Katy Perry: Orlando Bloom's 8-year-old son helped her mature TAGS: American Idol Katy Perry Dr. Luke Juicy J Joyful Noise
