American Idol Simon Cowell: Paula Abdul and I were the legs of 'American Idol,' the show went downhill once we left 04/06/2016 Simon Cowell believes American Idol went downhill after he and fellow original judge Paula Abdul left the judging panel. Read More RELATED NEWS 'American Idol,' 'The Bachelor,' 'The Bachelorette' and 'Shark Tank' all renewed by ABCKeith Urban, Carrie Underwood, Lauren Alaina and Jason Derulo win big at 2017 CMT Music AwardsKaty Perry reveals details of Taylor Swift feud -- "She started it" TAGS: America's Got Talent American Idol The X Factor Paula Abdul Mariah Carey Harry Connick Jr. Simon Cowell Ellen DeGeneres Kara DioGuardi Randy Jackson Jennifer Lopez Nicki Minaj Ryan Seacrest Steven Tyler Keith Urban