The Grammy-nominated singer took the mic, singing a cover of Nancy Sinatra's "These Boots Are Made for Walkin'" and her new single "Blame Me."

John Foster ended Season 23 of American Idol as runner-up behind Jamal Roberts, and he’s not looking to let the momentum slow down anytime soon. Following the Sunday, May 18, finale, the teenager already has plans for what’s next.

"American Idol" named its Season 23 winner following performances by finalists Jamal Roberts, John Foster and Breanna Nix.