She saw renewed fame and success as an original judge on American Idol in the 2000s, which she left after the eighth season.
She went on to star on CBS's short-lived television series Live to Dance, which lasted one season in 2011, and was subsequently a judge on the first season of the American version of The X Factor along with her former American Idol co-judge Simon Cowell, the creator and producer of the show.
WATCH: 'American Idol' Finale: 15 Big Reveals From the Series Retrospective 1."I'd let her stay for a few hours, but then it would have to be goodnight," he joked.PHOTOS: Get to Know ' X Factor's' Top 17 Finalists But the two weren't always on good terms.The mind is designed to often delude us, he argued, about ourselves and about the world.And it is designed to make happiness hard to sustain.
judges panel in season one, she had no idea what to expect, least of all that the show would be a ratings juggernaut (averaging 35 million viewers during its season-five height, according to Nielsen) and that the program, along with her snippy tablemate Simon Cowell and the jovial Randy Jackson, would become instant pop culture phenomena.