John Foster’s Heartfelt Tribute to Veteran Grandfathers Leaves Carrie Underwood Beaming—Emotional Performance Ignites Standing Ovation!

American Idol 2025 finalist John Foster moved hearts across the nation with an emotional tribute to his military veteran grandfathers—leaving judge Carrie Underwood smiling like a proud mom and the audience roaring with applause.

With unmistakable country grit and a voice that channels the heart of Americana, 18-year-old John Foster delivered one of the most unforgettable moments of the American Idol Season 23 finale. Performing Toby Keith’s iconic anthem “Courtesy of the Red, White and Blue (The Angry American),” Foster lit up the stage with a performance rooted in heritage, passion, and pride.

Foster, a Louisiana native, emerged as a fan favorite early in the season. After surpassing over 120,000 hopefuls, he earned his spot in the Top 3 alongside Breanna Nix and Jamal Roberts. During the finale on May 18, he had one final chance to win over millions of live voters—and he did so by choosing a song that struck deep personal chords.

Mentored by country music star Jelly Roll, Foster shared during rehearsals that his grandfathers—both veterans—were his inspiration for the performance. That emotion was unmistakable the moment he took the stage. With guitar in hand and his grandfathers watching from the crowd, Foster poured his heart into every lyric of the patriotic ballad.

The performance ignited the crowd and earned a standing ovation from all three judges.

Lionel Richie praised the song as the “perfect choice,” even joking that Foster might have a career in politics. Luke Bryan highlighted his transformation since auditions, noting his newfound maturity and confidence. But it was Carrie Underwood who summed up the moment best: “I’m so proud of you. That was everything.”

What made the performance so powerful wasn’t just the vocal strength—but the purpose behind it. Foster’s tribute wasn’t just for show—it was a heartfelt thank-you to the men who shaped him, and to veterans across the country. Every note was a declaration of identity, gratitude, and pride.

As the final note rang out, Foster looked into the audience and said, “It would be the absolute honor of a lifetime if they think this little ol’ boy from Louisiana could be the next American Idol.”

Watch his performance below.

Whether or not he takes home the Idol crown, John Foster has already cemented his legacy with a performance that captured the soul of America—and introduced the world to country music’s next breakout star.