Budgie from Cardiff, Wales, played old-school 'muck'n'howl' songs.

Album:
Garage Inc. / Garage Days Re-Revisited

The cover of:
The song "Crash Course In Brain Surgery" was originally released by Budgie on their debut album "Budgie" in 1971.

Originally released on:
Metallica originally released it in August 1987 on "The $5.98 E.P. - Garage Days Re-Revisited" EP.

The footnotes:
The label copy of "The $5.98 EP Garage Days Re-Revisited" noted that "Crash Course In Brain Surgery" was first recorded in 1974 because it is also included on Budgie's album of that year "In For The Kill", but actually it had been cut in 1971 and first issued on "Budgie" just listed as "Crash Course".

The "Oooh, baby" part:
Metallica replaced the in the original version existing "Oooh, baby" part by massed drunken bellowing.