American Idol (season 8) the American Idol." Season eight was the top show for the 2008–09 broadcast primetime season and took the top two spots for its Tuesday and Wednesday episodes. The viewers number for the Wednesday episodes averaged 25.527 million, while the Tuesday episodes averaged 24.741 million. The ratings were down from season seven, with the finale dropping 13% in the 18–49 demo and 9% in total viewers number. American Idol (season 8) The eighth season of "American Idol" premiered on January 13, 2009, and concluded on May 20, 2009. Judges Simon Cowell, Paula Abdul, and Randy Jackson continued to judge the show's
American Idol (season 13) night before with all three judges on hand to toast the forthcoming announcement. On September 3, 2013, Lopez and Connick Jr. were officially announced as judges for this season along with the confirmation of Jackson being the new mentor. Lopez is the first "American Idol" judge to return after leaving at the end of the eleventh season. It was also later reported that Idol alumni Adam Lambert and Chris Daughtry would be assisting Jackson in mentoring the contestants. In a rules change from past seasons, semifinalists from the twelfth season (but not previous seasons) who were not in the top