John Foster Will Win American Idol Season 23 (The Proof)

American Idolseason 23 finalist John Foster has now advanced to the Top 3 and will compete in the finale, and there is a lot of proof that he'll win the whole competition. John, an 18-year-old college student from Addis, Louisiana, impressed the judges--Lionel Richie, Carrie Underwood, and Luke Bryan--at his audition when he sang "Don't Rock the Jukebox" by Alan Jackson. Then, when Carrie asked him to sing another song that showcased his vocals a bit more, he sang, "Goodbye Time" by Conway Twitty, earning three votes of yes from the judges and a golden ticket to Hollywood.