Tonight is the “America’s Got Talent” finale, and an especially big night for contestant Michael Ketterer.

The finalist will get to sing a Garth Brooks original, written just for him!

“Extra’s” Terri Seymour caught up with judge Simon Cowell, who asked the country superstar to pen a song for the father of five.

Cowell told us the song is “amazing,” but the request got in the way of Garth’s vacation. Watch!