Elvis backstage tensions: ‘You NEVER approached him before a show’ says Priscilla Presley

Elvis’ ex-wife continued: “Right now [referring to the footage] he’s psyching himself out. Head down, getting himself ready, taking deep breaths.

“And people were wondering, ‘oh my god, why would he be nervous?’ Because you get nervous.

“He always said, ‘you get a different crowd’, you never know, you get people drinking – this is Vegas.

“He said: ‘Every show’s different. You start seeing somebody yawning or looking at their watch, you’d better do a better job’”