I was brought up in a household where 'popular music' meant Gilbert and Sullivan. ('Proper music' was Beethoven and Mozart. Jazz and 'rock & roll' were regarded with utter disgust). So I didn't discover 'pop' until quite late on. (My cousins had pictures of Elvis Presley on their kitchen wall. I'd never even heard of him, yet alone his music!).
The first picture of a pop artist I ever put on my bedroom wall was of Heinz, 'cos I admired his good looks (even though I probably wouldn't have recognised any of his songs if I'd heard them!):
http://www.billyfury.com/fury_images/heinz.gif
I can't even report on any wild gigs that I went to in my school or college days. At college, in between my regular trips to the Hallé Orchestra concerts, I went to see The Spinners, Ralph McTell and the Vienna Boys' Choir. (Yeah, rock on, baby!)