Eric Church got a stamp of approval on his single “Springsteen” from “The Boss” himself, Bruce Springsteen.

The country rocker revealed to Billboard that Bruce told him in a personal letter that he and his family are fans of the song ““ and what’s Eric find even cooler?

The letter was on the back of one of The Boss’s set lists.

“It means the world to me,” Eric says. and the set list is three hours and 37 minutes. That impressed me, too.”

As for the note from The Boss, Eric says it’s “locked up” somewhere safe.