I stumbled across the Forum because of the mention of John Brecknock, my favourite British operatic tenor. I saw many of his stage performances, mostly at the London Coliseum and also several concert appeances. Lovely man.
I can confirm that for a while Bryan Johnson was indeed famous. His brother Teddy was too, half of the Pearl Carr and TeddyJohnson duo whose rendition of Sing Little Birdie was another Eurovision entry.