Leon James "Lee" DeWyze Jr. is an American singer-songwriter and the winner of the ninth season of American Idol.

The ninth season of American Idol premiered on Fox on Tuesday, January 12, 2010, and concluded on Wednesday, May 26, 2010. Simon Cowell, Kara DioGuardi, and Randy Jackson returned as judges and were joined by Ellen DeGeneres, who was brought on as a replacement for Paula Abdul after a series of guest judges filled in during the auditions. Idol Gives Back also returned on April 21, 2010. The top 24 semifinal format used in the fourth through seventh seasons also returned this season. Cowell, DioGuardi, and DeGeneres all left the show after this season, although only Cowell's departure was announced in advance.