Try 42 years. David Essex’s youngest child is one. His eldest is 43. So the eldest could easily be the youngest’s grandmother. I like David Essex. He was Britain’s answer to David Cassidy, a preposterously handsome actor-turned-singer whose picture adorned the bedroom walls of a million teenage girls. But blokes didn’t mind him either. To complement the pretty boy looks, he had the authentic jack-the-laddishness of a real East End boy. And he clearly still has, judging by the age gap between his kids. He’s a good actor. Tim Rice, who wrote Evita, said that David Essex made the best Che Guevara ever. He also made some half-decent records, especially this one. It’s quite old now. Though not quite as old as his daughter.