First , Casey James busted out a few squealy but potent electric guitar licks to toughen up Gavin DeGraw 's bubbly " I Don 't Want To Be " ; and then , in the coveted final spot , Lee DeWyze laid claim to the one rock stance that has proved triumphant on " Idol " -- the Nickelback groan -- by covering Hinder 's " Lips of an Angel " with such note-wrecking sincerity that it caused visions of Cookies to dance in Simon 's head .