I would fully recomend getting this album as it has some very good tracks and very good guitar work however it is greatly let down by some "awful" non rock/metal vocalists.
Ghost (Ian Astbury) - this is a really good opener, has a really good atmosphere and feel to it. solid un annoying vocals
Crucify The Dead (Ozzy Osbourne) - really good Ozzy track much better than his recent solo stuff.
Beautiful Dangerous (Fergie) - why this is included is beyond me, every part of this song make you want to hit your head against the wall. I have even tried to listen to it all the way hrough but the whining vocals are so bad it gets skipped after a minute.
Back From Cali (Myles Kennedy) - Great song really shows the amazing rage and talent that MK has. A treat for any Alter bridge or MF4 fans. Clearly demonstrates why Myles is providing Slas all of the vocals on tour.
Promise (Chris Cornell) - A fairly average song, nothing special here.
By The Sword (Andrew Stockdale of Wolfmother) - I dont like wolfmother but this song sounds really good great guitar vs vocals in parts.
Gotten (Adam Levine) - utter utter rubbish. He would be better suited on the talentless xfactor.
Doctor Alibi (Lemmy Kilminster) - Decent and what you expect from the motorhead man
Watch This (Dave Grohl/Duff McKagan) - very well constructed instruitemental track.
I Hold On (Kid Rock) - very poor nothing here that will make you want to listen to it more than once.
Nothing To Say (M Shadows of Avenged Sevenfold) - really good track and the heaviest on the album by far. includes some amazing a7x like beat downs.
Starlight (Myles Kennedy) - brilliant song as said above in back to cali.
Saint Is A Sinner Too (Rocco De Luca) - very boring and depressive another one for xfactor lovers
We're All Gonna Die (Iggy Pop) - Not an iggy fan but not a bad track.
Baby Can't Drive (Alice Cooper/Nicole Scherzinger of Pussycat Dolls) - this is a truley awful song, alice cooper can do 1 million times better than this and the pussycat dolls addition is pop tastic awful.
To sum it up when this album is good it is really good and when its bad the next track button is deployed!