Metallica is one of my favorite older bands! 
Same here. The black album played a big part in my formative years
What was their most popular song do you know?
I think Enter Sandman. They we great early heavy metal
I love Enter Sandman! The Unforgiven is another favorite of mine.
Enter Sandman was the first single from their self-title album in 1991. So long ago.
Wow that was a long time ago! 3 years after I was born! 
That song actually went platinum with over a millions copies sold
That is amazing. Metallica will always be a classic band in my opinion.
Same here. They were formed way back in 1981