I heard a story about metallica today. 
Is Metallica your favorite band? I know that it was formed in 1981.
It is not, I think they are a bunch of babies who cry about the internet. 
It was formed by Ulrich, one of the best drummers out there.  Metallica is not mine either but I have read a lot about different types of bands, including Metallica.
why did they make music?
Metallica
Metallica is an American heavy metal band. The band was formed in 1981 in Los Angeles, California, by drummer Lars Ulrich and vocalist/guitarist James Hetfield, and has been based in San Francisco, California for most of its career. The group's fast tempos, instrumentals and aggressive musicianship made them one of the founding "big four" bands of thrash metal, alongside Megadeth, Anthrax and Slayer. Metallica's current lineup comprises founding members Hetfield and Ulrich, longtime lead guitarist Kirk Hammett and bassist Robert Trujillo
great voice. Let's do something with this.' That's what they told me, and then James Hetfield heard about it and was not happy. He was, I think, pretty much out to put the kibosh on the whole thing because it would somehow affect Metallica in his eyes, because now the managers were interested in something I was doing that had nothing to do with him". Newsted sums up the situation as follows: "I have no idea what [Hetfield] was thinking, other than just