Complete the indicated task in Career mode to unlock the corresponding character.

James Hetfield: Get 100 stars on vocals.
James Hetfield (Classic): Get 150 stars on vocals.
James Hetfield (Zombie): Get 200 stars on vocals.
King Diamond: Complete "Evil".
Kirk Hammet: Get 100 stars on guitar.
Kirk Hammet (Classic): Get 150 stars on guitar.
Kirk Hammet (Zombie): Get 200 stars on guitar.
Lars Ulrich: Get 100 stars on drums.
Lars Ulrich (Classic): Get 150 stars on drums.
Lars Ulrich (Zombie): Get 200 stars on drums.
Lemmy: Complete "Ace Of Spades".
Marcus Fretshreder: Get 55 stars on guitar.
Matty Cannz: Get 55 stars on drums.
Riki Lee: Get 55 stars on vocals.
Rob Trujillo: Get 100 stars on bass.
Rob Trujillo (Classic): Get 150 stars on bass.
Rob Trujillo (Zombie): Get 200 stars on bass.
Shirley Crowley: Get 55 stars on bass.
Zach Harmon: Get 100 stars in a band.
Zach Harmon (Classic): Get 150 stars in a band.
Zach Harmon (Zombie): Get 200 stars in a band.