The audiobook version of "Brothers", the book from legendary VAN HALEN drummer Alex Van Halen, contains a previously unreleased song composed by Alex and his brother, legendary VAN HALEN guitarist Eddie Van Halen.

Titled "Unfinished", it is the last piece of music they wrote together and can be heard as Alex narrates his story.

The full version of "Unfinished" is now available for download at Van-Halen.com and can be streamed below.

Due today October 22 via HarperCollins Publishers, the 384-page "Brothers" book has a list price of $32.00.