I wasn't sarcastic.
Many people in rock and roll groups became deaf just like the guys who went to war.
I heard that the lead singer Justin in a Canadian group made 53 million dollars last year when he was only 16. He sounds like a girl but his voice is beginning to change.

 

And the winner is.....
.....ding....ding.....ding.....
.....drumroll, please......
.....SgtWookie!!

(Did my feeble attempt at the Greek alphabet give it away, or did you actually solve it without the clue?)

Lol - I solved it without the Greek alphabet clue. Back in the 60's, I listened to the radio a lot in the basement when I was puttering around in the workshop.

GP & UG had a remarkable start - their first five releases went gold. I don't think anyone else did that.