Hello, do you know that Heavy Metal as a music was developed in the late 1960s and early 1970s, largely in the United Kingdom.
I like heavy metal, but didn't realize it started quite that early!
It would surprise you to know that the bands that created heavy metal developed a thick, massive sound, characterized by highly amplified distortion
It definitely has a distinct sound. I know many don't like it, but I do. Do you know some of the best bands?
My favourite rock bands are The Beatles, AC/DC. Sad part is that  rock is  sometimes associated with aggression and machismo. 
Yes, I know. Some people try to blame it on psychos that murder or assault people. Ridiculous!
Three famous rock bands Led Zeppelin, Black Sabbath and Deep Purple were founded in 1968