Metallica's Debut album was a style rip off on a band called Budgie, they even used the same album title, as a Budgie album. Kill Them All.
It wasn't until the whole "Napster" publicity exploded, that Metallica gave credit to Budgie for that album, despite ....
YouTube - Metallica Breadfan
YouTube - BUDGIE - BREADFAN
Back of the original release. I have this album, 1st pressing.
Back of the re-release, with added mention of covered songs.
Does this make Metallica a glorified tribute band? The reason I ask, is because nobody really made a youtube plagiarism video for them, and I bet most people don't even know. You can dig up a lot, on most well known musicians, nothing is as original as it may seem. And to even care about such technicalities, is a waste of time. If you like the music, that is all that matters.