Former Soundgarden and Audioslave front-man Chris Cornell is rightly heralded as one of the greatest rock singers of his generation, and next month (on the 21st to be specific) sees the release of his latest new album. "Songbook" will feature live performances from his current tour of the same name, including acoustic versions of essential Cornell-penned tracks, like the iconic brilliance of "Black Hole Sun" as well as covers. The full track list follows below. Recently, Cornell wrote and performed The Keeper, the poignant original song for Relativitys feature film Machine Gun Preacher (directed byMarc Forster)which premiered at the Toronto International Film Festival this month, and is set for wider release in the UK on November 2nd. The film stars Gerard Butler andis based on the true story of Sam Childers, a former drug-dealing criminal who finds faith leading him on a path to help the children of East Africa. The song is available to download via iTunes and a portion of the proceeds will go to Childers charity, Angels of East Africa, and you can now also check out the video for The Keeper below... http://youtu.be/Oo_l4hBIA5U Songbook Full Track Listing: As Hope and Promise Fade Scar On The Sky Call Me A Dog Ground Zero Can't Change Me I Am The Highway Thank You (Led Zeppelin) Cleaning My Gun Wide Awake Fell On Black Days All Night Thing Doesn't Remind Me Like A Stone Black Hole Sun Imagine (John Lennon) The Keeper Chris Cornell's "Songbook" is available to buy from November 21st.