Carrie Underwood to perform on March 8 'American Idol' results show
Still beaming from the two Grammys she took home in mid-Frebruary, American Idol 4 winner Carrie Underwood is scheduled to perform live on the sixth season of the Fox mega-hit this Thursday, March 8 at 8PM ET when the 16 remaining semifinalists are narrowed to 12 finalists.