One day in 1968, two men walked out on to the street.

One was a young TV producer called Steve Binder, the other was Elvis Presley. Pinder had been asked to produce a TV special in which Elvis was to croon Christmas carols, wearing a tuxedo. Binder declined, telling Elvis that thanks to years of making bad records and even worse films, he was a washed-up has-been. To make his point, he asked Elvis to walk out on to the street and see how many people recognised him. The answer was none. Binder said that the only way he would do the show was if Elvis ditched the tuxedo and carols for black leather and rock ‘n’ roll. The result was sensational. Elvis would have been 80 today and is still known as The King. This stunning comeback performance demonstrates why.