The ninth season of American Idol premiered on January 12, 2010, on Fox. Simon Cowell, Randy Jackson and Kara DioGuardi will all return as judges, and Ellen DeGeneres will permanently replace Paula Abdul as the fourth judge. Idol Gives Back will also return this season and will be held on April 21, 2010, during the top 7 results show. The top 24 semi-finals format used in the fourth through seventh seasons will also return this season. This will be Simon Cowell’s last season judging on American Idol.