From Destructoid
Confirmed Metallica tracks:
"Enter Sandman"
"For Whom The Bell Tolls"
"Fuel"
"Hit The Lights"
"King Nothing"
"Master of Puppets"
"No Leaf Clover"
"Nothing Else Matters"
"Sad But True"
"The Unforgiven"
"Where I May Roam"
Other artist's tracks:
Alice In Chains - "No Excuses"
Bob Seger - "Turn The Page"
Judas Priest - "Hell Bent For Leather"
Kyuss - "Demon Cleaner"
Lynyrd Skynyrd - "Tuesdays Gone"
Mastodon - "Blood and Thunder"
Michael Schenker Group - "Armed and Ready"
Samhain - "Mother of Mercy"
The Sword - "Black River"
Other confirmed artists include Foo Fighters, Queen, and Slayer.
Edit: game is now out.