Before the final votes were tallied, American Idol runner-up John Foster used his voice to honor friends he lost. The 18-year-old country singer first performed his original tune "Tell That Angel I Love Her" during the Easter Sunday special in April.

John Foster paid tribute to his high-school friend with a rendition of his original song at the American Idol finale where he came in second.

John Foster went out with a bang during the Season 23 finale on Sunday night (May 18), treating the fans at home to a rousing Toby Keith tribute.Before the first round of voting of the night, Foster took the stage to sing “Courtesy of the Red,