While obviously not as seismic a Top of the Pops moment as Ziggy singing “Starman”, the almost contemporaneous appearance of the flat-capped Gilbert O’Sullivan hunched over his piano as if it were a dying coal fire certainly stuck in my memory as clearly as Bowie’s androgynous space-age carrot-top. Although the flat cap was quickly ditched in favour of casual knitwear and even a hairy chest phase (see pic below), today’s 64-year-old Mr O’Sullivan feels that his fate in the shape of his image was sealed all those decades ago, and he’s been fighting ever since to transcend it.