PACOLET, S.C.—A country music singer who was a finalist on TV’s “American Idol” has been charged with driving under the influence resulting in death, South Carolina authorities said Wednesday. Caleb Andrew Kennedy, 17, drove his pickup truck onto a private driveway and struck a residential building in Spartanburg County on Tuesday, killing a man who had been inside, according to Master Trooper Mitchell Ridgeway of the South Carolina Highway Patrol. Resident Larry Duane Parris, 54, was pronounced dead at a hospital shortly after the crash, Spartanburg County Coroner Rusty Clevenger said. Kennedy is being charged as an adult with the crime, which is a felony, the prosecutor’s office said. Kennedy advanced into the Top 5 of the ABC reality show last year, but dropped out of the singing competition after a video circulated of him sitting next to someone wearing what appeared to be a Ku Klux Klan hood. On …