"The Man That Hung the Moon"
(Undated) -- Brantley Gilbert says his baby boy, Barrett, will very much be a part of his upcoming album.
The new father tells "People" magazine he wrote a song called "The Man That Hung the Moon" for his six-month-old son.
The song is about the relationship between and father and son over the course of several years.
Gilbert has not yet revealed when his upcoming album will drop. He's currently on the road for his 2018 The Ones That Like Me Tour.
