Back in 2001, Bruce Springsteen wrote a theme song for the Harry Potter movies, but it was rejected. The long-standing rumor was confirmed by the Boss last year, and the song itself has finally surfaced after 16 years underground. It’s called “I’ll Stand By You,” and Ultimate Classic Rock says it was found in a new collection of unreleased Springsteen tracks that was recently uploaded to a torrent site. It’s unclear how they got a hold of the track, but you can listen to it below.

Here’s what Springsteen had to say about the song in an interview with the BBC from last year:

It was pretty good. It was a song that I wrote for my eldest son, it was a big ballad that was very uncharacteristic of something I’d sing myself. But it was something that I thought would have fit lovely; at some point I’d like to get it into a children’s movie of some sort because it was a pretty lovely song.