American Idol 'American Idol' ends 15-year run with massive alumni reunion 04/08/2016 "American Idol" host Ryan Seacrest signed off from Idol for the last time on Thursday night after helming a massive alumni reunion on the reality competition's "farewell" finale. 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: American Idol Paula Abdul Lauren Alaina Kris Allen Fantasia Barrino Bo Bice Kelly Clarkson David Cook Bucky Covington Simon Cowell Diana Degarmo Lee Dewyze Kara DioGuardi Colton Dixon Danny Gokey Justin Guarini Trent Harmon Amber Holcomb Jennifer Hudson George Huff Allison Iraheta Randy Jackson Casey James Kimberley Locke Jennifer Lopez Scotty McCreery Katharine McPhee Phillip Phillips Kellie Pickler La'Porsha Renae Brandon Rogers Jessica Sanchez Ryan Seacrest Carly Smithson Jordin Sparks Ruben Studdard Pia Toscano Carrie Underwood Keith Urban Elliott Yamin Tamyra Gray LaToya London David Bowie William Hung Celine Dion Ricky Martin Louis Armstrong It Takes Two
