0_Apprentice
What do you think of the band Metallica? Personally I'm not a fan.
1_Wizard
I understand they are a heavy metal band out of LA - I'm not a fan either - that is just not my genre of music.
0_Apprentice
Yeah I enjoy classic and alternative rock but heavy metal just isn't my thing. 
1_Wizard
Apparently they were one of the founding big four bands of thrash metal along with Megadeth, Anthrax and Slayer
0_Apprentice
I've never heard of any of those other bands? Where they as popular as Metallica?
1_Wizard
I think so, especially Anthrax, even though they were the only one of those big four from the east coast.
0_Apprentice
What was one of their songs?
1_Wizard
I'm not sure, but they've sold 2.5 million records in the US from 1991-2004 and 10 million worldwide so I guess some people like them.