Austin Butler constantly listened to nine Elvis songs in preparation for playing the King.

The 31-year-old actor, who portrayed the singer in director Baz Luhrmann’s ‘Elvis’ biopic, said it was part of his plan to be “incredibly meticulous”.

He added to NME: “I wanted every gesture and everywhere that his eyes go and the way that he moves his entire body to feel as truthful and identical to him as possible but it’s got to feel as though it’s happening for the first time.”

His top nine Elvis songs to get him in the right frame of mind for shooting included ‘(There’ll Be) Peace in the Valley (For Me)’.

Austin said about the track: “Throughout his career, Elvis would go back to spiritual music as his solace so there’s a number of different gospel songs that I would return to, including ‘(There’ll Be) Peace in the Valley (For Me)’.

“When we went down to Nashville and recorded all the gospel numbers for the film, getting to be in these small churches listening to gospel being sung for eight hours straight, it sent chills down my spine and I couldn’t help but move.”

Austin said about listening to ‘Are You Lonesome Tonight? (Laughing Version)’: “There’s a recording of Elvis singing ‘Are You Lonesome Tonight?’ onstage where he can’t stop laughing. He’s almost crying!

“When I show that to people who haven’t heard it before, they can’t help but fall in love with him because he had one of the greatest, most genuine, open-hearted laughs. I felt like this gave me a window into him.”

He went on about ‘Unchained Melody’ being a significant song in his preparation: “Every time I watch or hear ‘Unchained Melody’, it brings tears to my eyes. It was a tricky one to sing, because at that point, I was quite large and so my breathing was constricted because you’re strapped into the jumpsuit.”

And he said ‘Separate Ways’ made him “feel very connected” to Elvis’ “soul” as it was recorded around the time of the King’s divorce from Priscilla Presley.

He added his other top Elvis tracks were ‘Milkcow Blues Boogie’, ‘Polk Salad Annie’, ‘Never Been to Spain’, ‘Trouble’ and ‘Smokestack Lightnin’’.