ET is revisiting some of the best and worst moments the American Idol judges have had over the course of 15 memorable seasons.
During the show's tremendous run, there were many times when the judges snagged bigger headlines than the contestants -- and the original judges, Simon Cowell, Paula Abdul and Randy Jackson -- even had some fun on ET.
Ellen DeGeneres joined the show in 2010, but only stayed for one season, calling the experience "one of the worst decisions" she had made in her career.
When Cowell also left to tend to The X Factor, the vacancies at the judges' panel were filled by Steven Tyler and Jennifer Lopez. While the judges didn't always agree, they nevertheless remained respectful and loving, though the 2013 crew seemed to experience a major rift between judges Mariah Carey and Nicki Minaj.
"If she calls me something that begins with a 'B' and ends with an 'itch,' I rebuke it," Carey said during one round of auditions.
With the squabbles came a dip in ratings until Lopez made her return the following season. In 2011, Lopez told us saying goodbye to contestants was the most difficult part about judging.