Phillip Phillips: Idol Coronation – AMERICAN IDOL SEASON 11

American Idol winner Phillip Phillips’ talent is undeniably inspirational — but it’s his quiet tenacity that is perhaps most moving.

Phillips, 21, suffered chronic problems due to a buildup of kidney stones during the show’s season. His father revealed to PEOPLE that since the show began, his son has had eight separate surgeries.

The “Idol” winner was ordered by his doctors to undergo “immediate” surgery, but he pushed on, even refusing treatment so that he could perform in his home city — Leesburg, Ga. — two weeks ago, when the “Idol” contestants returned to honor their hometowns, according to the Hollywood Reporter.

Phillips maintained his tone of perseverance and uplifting attitude in an interview with the Associated Press.