0_Apprentice
Do you like heavy metal music, like Metallica?
1_Wizard
I'm no metalhead, but I have seen Metallica in concert! 
0_Apprentice
It actually started in the UK in the late 60's .
1_Wizard
Interesting, I know sometimes the performance styles and lyrics can be associated with aggression. 
0_Apprentice
Led Zeppelin, Black Sabbath and Deep Purple were founded in 1968 and were the first and most famous.
1_Wizard
I like Led Zeppelin the most out of those three. I also enjoy Judas Priest. 