Heavy metal is my favourite genre of rock music!
Ohhhh me too! What is your favourite band?
 Led Zeppelin, Black Sabbath and Deep Purple! Love them!
Oh yes! Classics! What year did they come out those guys?
Actually, in 1968, all three were founded!
Know anything about Judas Priest?
Yes they were around in the seventies, and helped spur the genre's evolution by discarding much of its blues influence.