“I worked so hard,” Harmon, a 25-year-old Amory, Mississippi native, told the crowd tearfully after the the surprising result. “I know that I have a God-given ability, but I didn’t want to take it for granted.”
“I wanted to work so, so hard, and she pushed me to do it,” he added of Renae.
Harmon then proved that he was the champ, performing a stunning rendition of his new single, “Falling,” co-written by Idol judge Keith Urban.
The singer wowed the judges and fans throughout the season with impressive performances of songs like Justin Timberlake's "Drink You Away" and Sia's "Chandelier."
Harmon thanked his fans after the finale in an adorable Twitter video.
"I love y'all so much," he said. "I worked hard, but y'all did this. All I did was show up and sing. I appreciate you so much."
Harmon's mother, Cyndi, spoke to ET ahead of the finale, saying that the family feels "grateful" and "humbled" watching all her son's dreams come true.
"I got a text from him that just said basically, 'No matter what happens tonight, thanks for supporting me thank you for everything you’ve done to help make this dream come true and whatever happens, I love y'all,'" she said.