Album:
Garage Inc.

The cover of:
The song "Blitzkrieg" was originally released by Blitzkrieg in 1981 as a B-side to the "Buried Alive" single.

Originally released on:
Metallica originally released it in November 1984 as a B-side to the "Creeping Death" UK single.

What Metallica says about it:
To Lars, "Blitzkrieg" was "just one of those singles: 'Fuck, this rocks.'"