‘Idol’ ratings soar in series finale

"American Idol" went out big Thursday night. About 13.3 million viewers tuned in to the finale of the long-running singing competition series, which saw Trent Harmon crowned the 15th and final "Idol" in a surprise victory over fellow Mississippian La’Porsha Renae. It was the most-watched show of the night among viewers under 50, according to Nielsen.