Billy Gilman Wows Judges with 'Fight Song' on 'The Voice' (Video)

Billy Gilman wowed the judges during the knockout round on The Voice and he moved onto the upcoming live shows thanks to his stellar performance of Rachel Platten‘s “Fight Song.”

The 28-year-old former child star reunited with Tim McGraw and Faith Hill during the latest episode. He knew them when he was kicking off his career over a decade ago!

The country music superstars were the guest mentor for the knockout round on the show this season.

“Words cannot express my UNDYING gratitude to @NBCTheVoice and @adamlevine. Onto LIVES BABYYYY!!!” Billy tweeted after his performance aired. Watch below!