Foster said his life has changed since being a contestant on the show. “It has just been like rocket fuel to my career to be on American Idol,” he said. “I went from 0 to 50

After, Foster took the stage to perform six songs for a large crowd of eager listeners — many of which he covered on the show. First, he sang "Don’t Rock the Jukebox" by Alan Jackson, followed quickly by Elvis classic “Jailhouse Rock."

Jamal Roberts and John Foster were the final two on Season 23 of American Idol, with the winner announced during the live Sunday, May 18, finale. Ryan Seacrest was standing next to the final two contestant on stage as he announced the results of the nationwide vote.