It all started at the ZDF hit parade: Bernhard Brink looks back on 55 years of stage. In 2027 the Schlagerstar goes on farewell tour – but he doesn't want to disappear completely from the stage.His first appearance in the ZDF hit parade at the age of 19 remembers Schlagersänger Bernhard Brink ("Liebe auf Zeit") until today. Rex Gildo sat behind him at the time and said: "Guck mal, sein Popöchen tremblt." More than five decades later, Brink annou…