I was hit between the ears by Jeepster at a school disco, in early 1972. I wasn't long out of junior school and had never been to a proper disco before, where the music was loud and the mesmerising swirling lights lit up the hippies and beautiful girls.
It was the tribal drum intro... then that brutal riff... then that voice. I was in. And still am.
I didn't get to see T.REX until February 1976 ( https://bolan-boogie.bandcamp.com/album/birmingham-76 ) - and then for a second and final time in March the following year. Both were very special and cherished events.